64528840

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{5741}}^1$

素因数の和:6033

約数の個数: 32

約数和(自身を含む): 145731960

約数和(自身を除く): 81203120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 5741, 11240, 11482, 22964, 28705, 45928, 57410, 114820, 229640, 1613221, 3226442, 6452884, 8066105, 12905768, 16132210, 32264420, 64528840]

約数ペア:

[(1, 64528840), (2, 32264420), (4, 16132210), (5, 12905768), (8, 8066105), (10, 6452884), (20, 3226442), (40, 1613221), (281, 229640), (562, 114820), (1124, 57410), (1405, 45928), (2248, 28705), (2810, 22964), (5620, 11482), (5741, 11240)]