87318640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15373}}^1$

素因数の和:15457

約数の個数: 40

約数和(自身を含む): 205888608

約数和(自身を除く): 118569968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 15373, 30746, 61492, 76865, 122984, 153730, 245968, 307460, 614920, 1091483, 1229840, 2182966, 4365932, 5457415, 8731864, 10914830, 17463728, 21829660, 43659320, 87318640]

約数ペア:

[(1, 87318640), (2, 43659320), (4, 21829660), (5, 17463728), (8, 10914830), (10, 8731864), (16, 5457415), (20, 4365932), (40, 2182966), (71, 1229840), (80, 1091483), (142, 614920), (284, 307460), (355, 245968), (568, 153730), (710, 122984), (1136, 76865), (1420, 61492), (2840, 30746), (5680, 15373)]