641476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 1249920

約数和(自身を除く): 608444

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 239, 244, 478, 671, 956, 1342, 2629, 2684, 5258, 10516, 14579, 29158, 58316, 160369, 320738, 641476]

約数ペア:

[(1, 641476), (2, 320738), (4, 160369), (11, 58316), (22, 29158), (44, 14579), (61, 10516), (122, 5258), (239, 2684), (244, 2629), (478, 1342), (671, 956)]