161378560

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 216

約数和(自身を含む): 469760256

約数和(自身を除く): 308381696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 83, 98, 112, 124, 128, 140, 155, 160, 166, 196, 217, 224, 245, 248, 256, 280, 310, 320, 332, 392, 415, 434, 448, 490, 496, 560, 581, 620, 640, 664, 784, 830, 868, 896, 980, 992, 1085, 1120, 1162, 1240, 1280, 1328, 1519, 1568, 1660, 1736, 1792, 1960, 1984, 2170, 2240, 2324, 2480, 2573, 2656, 2905, 3038, 3136, 3320, 3472, 3920, 3968, 4067, 4340, 4480, 4648, 4960, 5146, 5312, 5810, 6076, 6272, 6640, 6944, 7595, 7840, 7936, 8134, 8680, 8960, 9296, 9920, 10292, 10624, 11620, 12152, 12544, 12865, 13280, 13888, 15190, 15680, 16268, 17360, 18011, 18592, 19840, 20335, 20584, 21248, 23240, 24304, 25730, 26560, 27776, 30380, 31360, 32536, 34720, 36022, 37184, 39680, 40670, 41168, 46480, 48608, 51460, 53120, 55552, 60760, 62720, 65072, 69440, 72044, 74368, 81340, 82336, 90055, 92960, 97216, 102920, 106240, 121520, 126077, 130144, 138880, 144088, 148736, 162680, 164672, 180110, 185920, 194432, 205840, 243040, 252154, 260288, 277760, 288176, 325360, 329344, 360220, 371840, 388864, 411680, 486080, 504308, 520576, 576352, 630385, 650720, 658688, 720440, 743680, 823360, 972160, 1008616, 1041152, 1152704, 1260770, 1301440, 1440880, 1646720, 1944320, 2017232, 2305408, 2521540, 2602880, 2881760, 3293440, 4034464, 4610816, 5043080, 5205760, 5763520, 8068928, 10086160, 11527040, 16137856, 20172320, 23054080, 32275712, 40344640, 80689280, 161378560]

約数ペア:

[(1, 161378560), (2, 80689280), (4, 40344640), (5, 32275712), (7, 23054080), (8, 20172320), (10, 16137856), (14, 11527040), (16, 10086160), (20, 8068928), (28, 5763520), (31, 5205760), (32, 5043080), (35, 4610816), (40, 4034464), (49, 3293440), (56, 2881760), (62, 2602880), (64, 2521540), (70, 2305408), (80, 2017232), (83, 1944320), (98, 1646720), (112, 1440880), (124, 1301440), (128, 1260770), (140, 1152704), (155, 1041152), (160, 1008616), (166, 972160), (196, 823360), (217, 743680), (224, 720440), (245, 658688), (248, 650720), (256, 630385), (280, 576352), (310, 520576), (320, 504308), (332, 486080), (392, 411680), (415, 388864), (434, 371840), (448, 360220), (490, 329344), (496, 325360), (560, 288176), (581, 277760), (620, 260288), (640, 252154), (664, 243040), (784, 205840), (830, 194432), (868, 185920), (896, 180110), (980, 164672), (992, 162680), (1085, 148736), (1120, 144088), (1162, 138880), (1240, 130144), (1280, 126077), (1328, 121520), (1519, 106240), (1568, 102920), (1660, 97216), (1736, 92960), (1792, 90055), (1960, 82336), (1984, 81340), (2170, 74368), (2240, 72044), (2324, 69440), (2480, 65072), (2573, 62720), (2656, 60760), (2905, 55552), (3038, 53120), (3136, 51460), (3320, 48608), (3472, 46480), (3920, 41168), (3968, 40670), (4067, 39680), (4340, 37184), (4480, 36022), (4648, 34720), (4960, 32536), (5146, 31360), (5312, 30380), (5810, 27776), (6076, 26560), (6272, 25730), (6640, 24304), (6944, 23240), (7595, 21248), (7840, 20584), (7936, 20335), (8134, 19840), (8680, 18592), (8960, 18011), (9296, 17360), (9920, 16268), (10292, 15680), (10624, 15190), (11620, 13888), (12152, 13280), (12544, 12865)]