161729480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 418037760

約数和(自身を除く): 256308280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 71, 88, 110, 124, 142, 155, 167, 220, 248, 284, 310, 334, 341, 355, 440, 568, 620, 668, 682, 710, 781, 835, 1240, 1336, 1364, 1420, 1562, 1670, 1705, 1837, 2201, 2728, 2840, 3124, 3340, 3410, 3674, 3905, 4402, 5177, 6248, 6680, 6820, 7348, 7810, 8804, 9185, 10354, 11005, 11857, 13640, 14696, 15620, 17608, 18370, 20708, 22010, 23714, 24211, 25885, 31240, 36740, 41416, 44020, 47428, 48422, 51770, 56947, 59285, 73480, 88040, 94856, 96844, 103540, 113894, 118570, 121055, 130427, 193688, 207080, 227788, 237140, 242110, 260854, 284735, 367567, 455576, 474280, 484220, 521708, 569470, 652135, 735134, 968440, 1043416, 1138940, 1304270, 1470268, 1837835, 2277880, 2608540, 2940536, 3675670, 4043237, 5217080, 7351340, 8086474, 14702680, 16172948, 20216185, 32345896, 40432370, 80864740, 161729480]

約数ペア:

[(1, 161729480), (2, 80864740), (4, 40432370), (5, 32345896), (8, 20216185), (10, 16172948), (11, 14702680), (20, 8086474), (22, 7351340), (31, 5217080), (40, 4043237), (44, 3675670), (55, 2940536), (62, 2608540), (71, 2277880), (88, 1837835), (110, 1470268), (124, 1304270), (142, 1138940), (155, 1043416), (167, 968440), (220, 735134), (248, 652135), (284, 569470), (310, 521708), (334, 484220), (341, 474280), (355, 455576), (440, 367567), (568, 284735), (620, 260854), (668, 242110), (682, 237140), (710, 227788), (781, 207080), (835, 193688), (1240, 130427), (1336, 121055), (1364, 118570), (1420, 113894), (1562, 103540), (1670, 96844), (1705, 94856), (1837, 88040), (2201, 73480), (2728, 59285), (2840, 56947), (3124, 51770), (3340, 48422), (3410, 47428), (3674, 44020), (3905, 41416), (4402, 36740), (5177, 31240), (6248, 25885), (6680, 24211), (6820, 23714), (7348, 22010), (7810, 20708), (8804, 18370), (9185, 17608), (10354, 15620), (11005, 14696), (11857, 13640)]