87183640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{35731}}^1$

素因数の和:35803

約数の個数: 32

約数和(自身を含む): 199384560

約数和(自身を除く): 112200920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 35731, 71462, 142924, 178655, 285848, 357310, 714620, 1429240, 2179591, 4359182, 8718364, 10897955, 17436728, 21795910, 43591820, 87183640]

約数ペア:

[(1, 87183640), (2, 43591820), (4, 21795910), (5, 17436728), (8, 10897955), (10, 8718364), (20, 4359182), (40, 2179591), (61, 1429240), (122, 714620), (244, 357310), (305, 285848), (488, 178655), (610, 142924), (1220, 71462), (2440, 35731)]