256059090

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2305

約数の個数: 128

約数和(自身を含む): 793520640

約数和(自身を除く): 537461550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 61, 63, 70, 90, 105, 122, 126, 135, 183, 189, 210, 270, 305, 315, 366, 378, 427, 549, 610, 630, 854, 915, 945, 1098, 1281, 1647, 1830, 1890, 2135, 2221, 2562, 2745, 3294, 3843, 4270, 4442, 5490, 6405, 6663, 7686, 8235, 11105, 11529, 12810, 13326, 15547, 16470, 19215, 19989, 22210, 23058, 31094, 33315, 38430, 39978, 46641, 57645, 59967, 66630, 77735, 93282, 99945, 115290, 119934, 135481, 139923, 155470, 199890, 233205, 270962, 279846, 299835, 406443, 419769, 466410, 599670, 677405, 699615, 812886, 839538, 948367, 1219329, 1354810, 1399230, 1896734, 2032215, 2098845, 2438658, 2845101, 3657987, 4064430, 4197690, 4741835, 5690202, 6096645, 7315974, 8535303, 9483670, 12193290, 14225505, 17070606, 18289935, 25605909, 28451010, 36579870, 42676515, 51211818, 85353030, 128029545, 256059090]

約数ペア:

[(1, 256059090), (2, 128029545), (3, 85353030), (5, 51211818), (6, 42676515), (7, 36579870), (9, 28451010), (10, 25605909), (14, 18289935), (15, 17070606), (18, 14225505), (21, 12193290), (27, 9483670), (30, 8535303), (35, 7315974), (42, 6096645), (45, 5690202), (54, 4741835), (61, 4197690), (63, 4064430), (70, 3657987), (90, 2845101), (105, 2438658), (122, 2098845), (126, 2032215), (135, 1896734), (183, 1399230), (189, 1354810), (210, 1219329), (270, 948367), (305, 839538), (315, 812886), (366, 699615), (378, 677405), (427, 599670), (549, 466410), (610, 419769), (630, 406443), (854, 299835), (915, 279846), (945, 270962), (1098, 233205), (1281, 199890), (1647, 155470), (1830, 139923), (1890, 135481), (2135, 119934), (2221, 115290), (2562, 99945), (2745, 93282), (3294, 77735), (3843, 66630), (4270, 59967), (4442, 57645), (5490, 46641), (6405, 39978), (6663, 38430), (7686, 33315), (8235, 31094), (11105, 23058), (11529, 22210), (12810, 19989), (13326, 19215), (15547, 16470)]