400357072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{20731}}^1$

素因数の和:20827

約数の個数: 40

約数和(自身を含む): 832928832

約数和(自身を除く): 432571760

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 1136, 1207, 2414, 4828, 9656, 19312, 20731, 41462, 82924, 165848, 331696, 352427, 704854, 1409708, 1471901, 2819416, 2943802, 5638832, 5887604, 11775208, 23550416, 25022317, 50044634, 100089268, 200178536, 400357072]

約数ペア:

[(1, 400357072), (2, 200178536), (4, 100089268), (8, 50044634), (16, 25022317), (17, 23550416), (34, 11775208), (68, 5887604), (71, 5638832), (136, 2943802), (142, 2819416), (272, 1471901), (284, 1409708), (568, 704854), (1136, 352427), (1207, 331696), (2414, 165848), (4828, 82924), (9656, 41462), (19312, 20731)]