65309120

素因数分解:

$2^6\times 5^1\times {\mathrm{409}}^1\times {\mathrm{499}}^1$

素因数の和:925

約数の個数: 56

約数和(自身を含む): 156210000

約数和(自身を除く): 90900880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 409, 499, 818, 998, 1636, 1996, 2045, 2495, 3272, 3992, 4090, 4990, 6544, 7984, 8180, 9980, 13088, 15968, 16360, 19960, 26176, 31936, 32720, 39920, 65440, 79840, 130880, 159680, 204091, 408182, 816364, 1020455, 1632728, 2040910, 3265456, 4081820, 6530912, 8163640, 13061824, 16327280, 32654560, 65309120]

約数ペア:

[(1, 65309120), (2, 32654560), (4, 16327280), (5, 13061824), (8, 8163640), (10, 6530912), (16, 4081820), (20, 3265456), (32, 2040910), (40, 1632728), (64, 1020455), (80, 816364), (160, 408182), (320, 204091), (409, 159680), (499, 130880), (818, 79840), (998, 65440), (1636, 39920), (1996, 32720), (2045, 31936), (2495, 26176), (3272, 19960), (3992, 16360), (4090, 15968), (4990, 13088), (6544, 9980), (7984, 8180)]