64043984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{210671}}^1$

素因数の和:210698

約数の個数: 20

約数和(自身を含む): 130616640

約数和(自身を除く): 66572656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 210671, 421342, 842684, 1685368, 3370736, 4002749, 8005498, 16010996, 32021992, 64043984]

約数ペア:

[(1, 64043984), (2, 32021992), (4, 16010996), (8, 8005498), (16, 4002749), (19, 3370736), (38, 1685368), (76, 842684), (152, 421342), (304, 210671)]