251807240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{2897}}^1$

素因数の和:3002

約数の個数: 64

約数和(自身を含む): 591539760

約数和(自身を除く): 339732520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 164, 205, 212, 265, 328, 410, 424, 530, 820, 1060, 1640, 2120, 2173, 2897, 4346, 5794, 8692, 10865, 11588, 14485, 17384, 21730, 23176, 28970, 43460, 57940, 86920, 115880, 118777, 153541, 237554, 307082, 475108, 593885, 614164, 767705, 950216, 1187770, 1228328, 1535410, 2375540, 3070820, 4751080, 6141640, 6295181, 12590362, 25180724, 31475905, 50361448, 62951810, 125903620, 251807240]

約数ペア:

[(1, 251807240), (2, 125903620), (4, 62951810), (5, 50361448), (8, 31475905), (10, 25180724), (20, 12590362), (40, 6295181), (41, 6141640), (53, 4751080), (82, 3070820), (106, 2375540), (164, 1535410), (205, 1228328), (212, 1187770), (265, 950216), (328, 767705), (410, 614164), (424, 593885), (530, 475108), (820, 307082), (1060, 237554), (1640, 153541), (2120, 118777), (2173, 115880), (2897, 86920), (4346, 57940), (5794, 43460), (8692, 28970), (10865, 23176), (11588, 21730), (14485, 17384)]