251279406

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:566

約数の個数: 96

約数和(自身を含む): 644087808

約数和(自身を除く): 392808402

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 41, 42, 63, 82, 123, 126, 127, 246, 254, 287, 369, 381, 383, 574, 738, 762, 766, 861, 889, 1143, 1149, 1722, 1778, 2286, 2298, 2583, 2667, 2681, 3447, 5166, 5207, 5334, 5362, 6894, 8001, 8043, 10414, 15621, 15703, 16002, 16086, 24129, 31242, 31406, 36449, 46863, 47109, 48258, 48641, 72898, 93726, 94218, 97282, 109347, 109921, 141327, 145923, 218694, 219842, 282654, 291846, 328041, 329763, 340487, 437769, 656082, 659526, 680974, 875538, 989289, 1021461, 1978578, 1994281, 2042922, 3064383, 3988562, 5982843, 6128766, 11965686, 13959967, 17948529, 27919934, 35897058, 41879901, 83759802, 125639703, 251279406]

約数ペア:

[(1, 251279406), (2, 125639703), (3, 83759802), (6, 41879901), (7, 35897058), (9, 27919934), (14, 17948529), (18, 13959967), (21, 11965686), (41, 6128766), (42, 5982843), (63, 3988562), (82, 3064383), (123, 2042922), (126, 1994281), (127, 1978578), (246, 1021461), (254, 989289), (287, 875538), (369, 680974), (381, 659526), (383, 656082), (574, 437769), (738, 340487), (762, 329763), (766, 328041), (861, 291846), (889, 282654), (1143, 219842), (1149, 218694), (1722, 145923), (1778, 141327), (2286, 109921), (2298, 109347), (2583, 97282), (2667, 94218), (2681, 93726), (3447, 72898), (5166, 48641), (5207, 48258), (5334, 47109), (5362, 46863), (6894, 36449), (8001, 31406), (8043, 31242), (10414, 24129), (15621, 16086), (15703, 16002)]