64239020

素因数分解:

$2^2\times 5^1\times {\mathrm{757}}^1\times {\mathrm{4243}}^1$

素因数の和:5009

約数の個数: 24

約数和(自身を含む): 135111984

約数和(自身を除く): 70872964

約数列:

[1, 2, 4, 5, 10, 20, 757, 1514, 3028, 3785, 4243, 7570, 8486, 15140, 16972, 21215, 42430, 84860, 3211951, 6423902, 12847804, 16059755, 32119510, 64239020]

約数ペア:

[(1, 64239020), (2, 32119510), (4, 16059755), (5, 12847804), (10, 6423902), (20, 3211951), (757, 84860), (1514, 42430), (3028, 21215), (3785, 16972), (4243, 15140), (7570, 8486)]