217957796

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{587}}^1$

素因数の和:836

約数の個数: 48

約数和(自身を含む): 444528000

約数和(自身を除く): 226570204

約数列:

[1, 2, 4, 7, 14, 28, 89, 149, 178, 298, 356, 587, 596, 623, 1043, 1174, 1246, 2086, 2348, 2492, 4109, 4172, 8218, 13261, 16436, 26522, 52243, 53044, 87463, 92827, 104486, 174926, 185654, 208972, 349852, 365701, 371308, 612241, 731402, 1224482, 1462804, 2448964, 7784207, 15568414, 31136828, 54489449, 108978898, 217957796]

約数ペア:

[(1, 217957796), (2, 108978898), (4, 54489449), (7, 31136828), (14, 15568414), (28, 7784207), (89, 2448964), (149, 1462804), (178, 1224482), (298, 731402), (356, 612241), (587, 371308), (596, 365701), (623, 349852), (1043, 208972), (1174, 185654), (1246, 174926), (2086, 104486), (2348, 92827), (2492, 87463), (4109, 53044), (4172, 52243), (8218, 26522), (13261, 16436)]