256436260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{241921}}^1$

素因数の和:241983

約数の個数: 24

約数和(自身を含む): 548679096

約数和(自身を除く): 292242836

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 241921, 483842, 967684, 1209605, 2419210, 4838420, 12821813, 25643626, 51287252, 64109065, 128218130, 256436260]

約数ペア:

[(1, 256436260), (2, 128218130), (4, 64109065), (5, 51287252), (10, 25643626), (20, 12821813), (53, 4838420), (106, 2419210), (212, 1209605), (265, 967684), (530, 483842), (1060, 241921)]