251406960

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{569}}^1$

素因数の和:855

約数の個数: 160

約数和(自身を含む): 895656960

約数和(自身を除く): 644250000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 263, 280, 336, 420, 526, 560, 569, 789, 840, 1052, 1138, 1315, 1578, 1680, 1707, 1841, 2104, 2276, 2630, 2845, 3156, 3414, 3682, 3945, 3983, 4208, 4552, 5260, 5523, 5690, 6312, 6828, 7364, 7890, 7966, 8535, 9104, 9205, 10520, 11046, 11380, 11949, 12624, 13656, 14728, 15780, 15932, 17070, 18410, 19915, 21040, 22092, 22760, 23898, 27312, 27615, 29456, 31560, 31864, 34140, 36820, 39830, 44184, 45520, 47796, 55230, 59745, 63120, 63728, 68280, 73640, 79660, 88368, 95592, 110460, 119490, 136560, 147280, 149647, 159320, 191184, 220920, 238980, 299294, 318640, 441840, 448941, 477960, 598588, 748235, 897882, 955920, 1047529, 1197176, 1496470, 1795764, 2095058, 2244705, 2394352, 2992940, 3142587, 3591528, 4190116, 4489410, 5237645, 5985880, 6285174, 7183056, 8380232, 8978820, 10475290, 11971760, 12570348, 15712935, 16760464, 17957640, 20950580, 25140696, 31425870, 35915280, 41901160, 50281392, 62851740, 83802320, 125703480, 251406960]

約数ペア:

[(1, 251406960), (2, 125703480), (3, 83802320), (4, 62851740), (5, 50281392), (6, 41901160), (7, 35915280), (8, 31425870), (10, 25140696), (12, 20950580), (14, 17957640), (15, 16760464), (16, 15712935), (20, 12570348), (21, 11971760), (24, 10475290), (28, 8978820), (30, 8380232), (35, 7183056), (40, 6285174), (42, 5985880), (48, 5237645), (56, 4489410), (60, 4190116), (70, 3591528), (80, 3142587), (84, 2992940), (105, 2394352), (112, 2244705), (120, 2095058), (140, 1795764), (168, 1496470), (210, 1197176), (240, 1047529), (263, 955920), (280, 897882), (336, 748235), (420, 598588), (526, 477960), (560, 448941), (569, 441840), (789, 318640), (840, 299294), (1052, 238980), (1138, 220920), (1315, 191184), (1578, 159320), (1680, 149647), (1707, 147280), (1841, 136560), (2104, 119490), (2276, 110460), (2630, 95592), (2845, 88368), (3156, 79660), (3414, 73640), (3682, 68280), (3945, 63728), (3983, 63120), (4208, 59745), (4552, 55230), (5260, 47796), (5523, 45520), (5690, 44184), (6312, 39830), (6828, 36820), (7364, 34140), (7890, 31864), (7966, 31560), (8535, 29456), (9104, 27615), (9205, 27312), (10520, 23898), (11046, 22760), (11380, 22092), (11949, 21040), (12624, 19915), (13656, 18410), (14728, 17070), (15780, 15932)]