680234240

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 216

約数和(自身を含む): 1948504320

約数和(自身を除く): 1268270080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 79, 80, 112, 124, 128, 140, 155, 158, 160, 217, 224, 248, 256, 280, 310, 316, 320, 395, 434, 448, 496, 553, 560, 620, 632, 640, 790, 868, 896, 961, 992, 1085, 1106, 1120, 1240, 1264, 1280, 1580, 1736, 1792, 1922, 1984, 2170, 2212, 2240, 2449, 2480, 2528, 2765, 3160, 3472, 3844, 3968, 4340, 4424, 4480, 4805, 4898, 4960, 5056, 5530, 6320, 6727, 6944, 7688, 7936, 8680, 8848, 8960, 9610, 9796, 9920, 10112, 11060, 12245, 12640, 13454, 13888, 15376, 17143, 17360, 17696, 19220, 19592, 19840, 20224, 22120, 24490, 25280, 26908, 27776, 30752, 33635, 34286, 34720, 35392, 38440, 39184, 39680, 44240, 48980, 50560, 53816, 55552, 61504, 67270, 68572, 69440, 70784, 75919, 76880, 78368, 85715, 88480, 97960, 101120, 107632, 123008, 134540, 137144, 138880, 141568, 151838, 153760, 156736, 171430, 176960, 195920, 215264, 246016, 269080, 274288, 277760, 303676, 307520, 313472, 342860, 353920, 379595, 391840, 430528, 531433, 538160, 548576, 607352, 615040, 626944, 685720, 707840, 759190, 783680, 861056, 1062866, 1076320, 1097152, 1214704, 1230080, 1371440, 1518380, 1567360, 1722112, 2125732, 2152640, 2194304, 2429408, 2657165, 2742880, 3036760, 3134720, 4251464, 4305280, 4388608, 4858816, 5314330, 5485760, 6073520, 8502928, 8610560, 9717632, 10628660, 10971520, 12147040, 17005856, 19435264, 21257320, 21943040, 24294080, 34011712, 42514640, 48588160, 68023424, 85029280, 97176320, 136046848, 170058560, 340117120, 680234240]

約数ペア:

[(1, 680234240), (2, 340117120), (4, 170058560), (5, 136046848), (7, 97176320), (8, 85029280), (10, 68023424), (14, 48588160), (16, 42514640), (20, 34011712), (28, 24294080), (31, 21943040), (32, 21257320), (35, 19435264), (40, 17005856), (56, 12147040), (62, 10971520), (64, 10628660), (70, 9717632), (79, 8610560), (80, 8502928), (112, 6073520), (124, 5485760), (128, 5314330), (140, 4858816), (155, 4388608), (158, 4305280), (160, 4251464), (217, 3134720), (224, 3036760), (248, 2742880), (256, 2657165), (280, 2429408), (310, 2194304), (316, 2152640), (320, 2125732), (395, 1722112), (434, 1567360), (448, 1518380), (496, 1371440), (553, 1230080), (560, 1214704), (620, 1097152), (632, 1076320), (640, 1062866), (790, 861056), (868, 783680), (896, 759190), (961, 707840), (992, 685720), (1085, 626944), (1106, 615040), (1120, 607352), (1240, 548576), (1264, 538160), (1280, 531433), (1580, 430528), (1736, 391840), (1792, 379595), (1922, 353920), (1984, 342860), (2170, 313472), (2212, 307520), (2240, 303676), (2449, 277760), (2480, 274288), (2528, 269080), (2765, 246016), (3160, 215264), (3472, 195920), (3844, 176960), (3968, 171430), (4340, 156736), (4424, 153760), (4480, 151838), (4805, 141568), (4898, 138880), (4960, 137144), (5056, 134540), (5530, 123008), (6320, 107632), (6727, 101120), (6944, 97960), (7688, 88480), (7936, 85715), (8680, 78368), (8848, 76880), (8960, 75919), (9610, 70784), (9796, 69440), (9920, 68572), (10112, 67270), (11060, 61504), (12245, 55552), (12640, 53816), (13454, 50560), (13888, 48980), (15376, 44240), (17143, 39680), (17360, 39184), (17696, 38440), (19220, 35392), (19592, 34720), (19840, 34286), (20224, 33635), (22120, 30752), (24490, 27776), (25280, 26908)]