90015320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 210643200

約数和(自身を除く): 120627880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 229, 248, 310, 317, 458, 620, 634, 916, 1145, 1240, 1268, 1585, 1832, 2290, 2536, 3170, 4580, 6340, 7099, 9160, 9827, 12680, 14198, 19654, 28396, 35495, 39308, 49135, 56792, 70990, 72593, 78616, 98270, 141980, 145186, 196540, 283960, 290372, 362965, 393080, 580744, 725930, 1451860, 2250383, 2903720, 4500766, 9001532, 11251915, 18003064, 22503830, 45007660, 90015320]

約数ペア:

[(1, 90015320), (2, 45007660), (4, 22503830), (5, 18003064), (8, 11251915), (10, 9001532), (20, 4500766), (31, 2903720), (40, 2250383), (62, 1451860), (124, 725930), (155, 580744), (229, 393080), (248, 362965), (310, 290372), (317, 283960), (458, 196540), (620, 145186), (634, 141980), (916, 98270), (1145, 78616), (1240, 72593), (1268, 70990), (1585, 56792), (1832, 49135), (2290, 39308), (2536, 35495), (3170, 28396), (4580, 19654), (6340, 14198), (7099, 12680), (9160, 9827)]