64955920

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{7883}}^1$

素因数の和:7999

約数の個数: 40

約数和(自身を含む): 152508096

約数和(自身を除く): 87552176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 7883, 8240, 15766, 31532, 39415, 63064, 78830, 126128, 157660, 315320, 630640, 811949, 1623898, 3247796, 4059745, 6495592, 8119490, 12991184, 16238980, 32477960, 64955920]

約数ペア:

[(1, 64955920), (2, 32477960), (4, 16238980), (5, 12991184), (8, 8119490), (10, 6495592), (16, 4059745), (20, 3247796), (40, 1623898), (80, 811949), (103, 630640), (206, 315320), (412, 157660), (515, 126128), (824, 78830), (1030, 63064), (1648, 39415), (2060, 31532), (4120, 15766), (7883, 8240)]