31457970

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:637

約数の個数: 80

約数和(自身を含む): 85935168

約数和(自身を除く): 54477198

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 71, 81, 90, 135, 142, 162, 213, 270, 355, 405, 426, 547, 639, 710, 810, 1065, 1094, 1278, 1641, 1917, 2130, 2735, 3195, 3282, 3834, 4923, 5470, 5751, 6390, 8205, 9585, 9846, 11502, 14769, 16410, 19170, 24615, 28755, 29538, 38837, 44307, 49230, 57510, 73845, 77674, 88614, 116511, 147690, 194185, 221535, 233022, 349533, 388370, 443070, 582555, 699066, 1048599, 1165110, 1747665, 2097198, 3145797, 3495330, 5242995, 6291594, 10485990, 15728985, 31457970]

約数ペア:

[(1, 31457970), (2, 15728985), (3, 10485990), (5, 6291594), (6, 5242995), (9, 3495330), (10, 3145797), (15, 2097198), (18, 1747665), (27, 1165110), (30, 1048599), (45, 699066), (54, 582555), (71, 443070), (81, 388370), (90, 349533), (135, 233022), (142, 221535), (162, 194185), (213, 147690), (270, 116511), (355, 88614), (405, 77674), (426, 73845), (547, 57510), (639, 49230), (710, 44307), (810, 38837), (1065, 29538), (1094, 28755), (1278, 24615), (1641, 19170), (1917, 16410), (2130, 14769), (2735, 11502), (3195, 9846), (3282, 9585), (3834, 8205), (4923, 6390), (5470, 5751)]