260781920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:126

約数の個数: 288

約数和(自身を含む): 785998080

約数和(自身を除く): 525216160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 32, 35, 37, 40, 49, 56, 58, 62, 70, 74, 80, 98, 112, 116, 124, 140, 145, 148, 155, 160, 185, 196, 203, 217, 224, 232, 245, 248, 259, 280, 290, 296, 310, 370, 392, 406, 434, 464, 490, 496, 518, 560, 580, 592, 620, 740, 784, 812, 868, 899, 928, 980, 992, 1015, 1036, 1073, 1085, 1120, 1147, 1160, 1184, 1240, 1295, 1421, 1480, 1519, 1568, 1624, 1736, 1798, 1813, 1960, 2030, 2072, 2146, 2170, 2294, 2320, 2480, 2590, 2842, 2960, 3038, 3248, 3472, 3596, 3626, 3920, 4060, 4144, 4292, 4340, 4495, 4588, 4640, 4960, 5180, 5365, 5684, 5735, 5920, 6076, 6293, 6496, 6944, 7105, 7192, 7252, 7511, 7595, 7840, 8029, 8120, 8288, 8584, 8680, 8990, 9065, 9176, 10360, 10730, 11368, 11470, 12152, 12586, 14210, 14384, 14504, 15022, 15190, 16058, 16240, 17168, 17360, 17980, 18130, 18352, 20720, 21460, 22736, 22940, 24304, 25172, 28420, 28768, 29008, 30044, 30380, 31465, 32116, 32480, 33263, 34336, 34720, 35960, 36260, 36704, 37555, 40145, 41440, 42920, 44051, 45472, 45880, 48608, 50344, 52577, 56203, 56840, 58016, 60088, 60760, 62930, 64232, 66526, 71920, 72520, 75110, 80290, 85840, 88102, 91760, 100688, 105154, 112406, 113680, 120176, 121520, 125860, 128464, 133052, 143840, 145040, 150220, 160580, 166315, 171680, 176204, 183520, 201376, 210308, 220255, 224812, 227360, 232841, 240352, 243040, 251720, 256928, 262885, 266104, 281015, 290080, 300440, 321160, 332630, 352408, 420616, 440510, 449624, 465682, 503440, 525770, 532208, 562030, 600880, 642320, 665260, 704816, 841232, 881020, 899248, 931364, 1006880, 1051540, 1064416, 1124060, 1164205, 1201760, 1284640, 1330520, 1409632, 1629887, 1682464, 1762040, 1798496, 1862728, 2103080, 2248120, 2328410, 2661040, 3259774, 3524080, 3725456, 4206160, 4496240, 4656820, 5322080, 6519548, 7048160, 7450912, 8149435, 8412320, 8992480, 9313640, 13039096, 16298870, 18627280, 26078192, 32597740, 37254560, 52156384, 65195480, 130390960, 260781920]

約数ペア:

[(1, 260781920), (2, 130390960), (4, 65195480), (5, 52156384), (7, 37254560), (8, 32597740), (10, 26078192), (14, 18627280), (16, 16298870), (20, 13039096), (28, 9313640), (29, 8992480), (31, 8412320), (32, 8149435), (35, 7450912), (37, 7048160), (40, 6519548), (49, 5322080), (56, 4656820), (58, 4496240), (62, 4206160), (70, 3725456), (74, 3524080), (80, 3259774), (98, 2661040), (112, 2328410), (116, 2248120), (124, 2103080), (140, 1862728), (145, 1798496), (148, 1762040), (155, 1682464), (160, 1629887), (185, 1409632), (196, 1330520), (203, 1284640), (217, 1201760), (224, 1164205), (232, 1124060), (245, 1064416), (248, 1051540), (259, 1006880), (280, 931364), (290, 899248), (296, 881020), (310, 841232), (370, 704816), (392, 665260), (406, 642320), (434, 600880), (464, 562030), (490, 532208), (496, 525770), (518, 503440), (560, 465682), (580, 449624), (592, 440510), (620, 420616), (740, 352408), (784, 332630), (812, 321160), (868, 300440), (899, 290080), (928, 281015), (980, 266104), (992, 262885), (1015, 256928), (1036, 251720), (1073, 243040), (1085, 240352), (1120, 232841), (1147, 227360), (1160, 224812), (1184, 220255), (1240, 210308), (1295, 201376), (1421, 183520), (1480, 176204), (1519, 171680), (1568, 166315), (1624, 160580), (1736, 150220), (1798, 145040), (1813, 143840), (1960, 133052), (2030, 128464), (2072, 125860), (2146, 121520), (2170, 120176), (2294, 113680), (2320, 112406), (2480, 105154), (2590, 100688), (2842, 91760), (2960, 88102), (3038, 85840), (3248, 80290), (3472, 75110), (3596, 72520), (3626, 71920), (3920, 66526), (4060, 64232), (4144, 62930), (4292, 60760), (4340, 60088), (4495, 58016), (4588, 56840), (4640, 56203), (4960, 52577), (5180, 50344), (5365, 48608), (5684, 45880), (5735, 45472), (5920, 44051), (6076, 42920), (6293, 41440), (6496, 40145), (6944, 37555), (7105, 36704), (7192, 36260), (7252, 35960), (7511, 34720), (7595, 34336), (7840, 33263), (8029, 32480), (8120, 32116), (8288, 31465), (8584, 30380), (8680, 30044), (8990, 29008), (9065, 28768), (9176, 28420), (10360, 25172), (10730, 24304), (11368, 22940), (11470, 22736), (12152, 21460), (12586, 20720), (14210, 18352), (14384, 18130), (14504, 17980), (15022, 17360), (15190, 17168), (16058, 16240)]