64542920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124121}}^1$

素因数の和:124145

約数の個数: 32

約数和(自身を含む): 156393720

約数和(自身を除く): 91850800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124121, 248242, 496484, 620605, 992968, 1241210, 1613573, 2482420, 3227146, 4964840, 6454292, 8067865, 12908584, 16135730, 32271460, 64542920]

約数ペア:

[(1, 64542920), (2, 32271460), (4, 16135730), (5, 12908584), (8, 8067865), (10, 6454292), (13, 4964840), (20, 3227146), (26, 2482420), (40, 1613573), (52, 1241210), (65, 992968), (104, 620605), (130, 496484), (260, 248242), (520, 124121)]