21949360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 54282240

約数和(自身を除く): 32332880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 79, 80, 92, 115, 151, 158, 184, 230, 302, 316, 368, 395, 460, 604, 632, 755, 790, 920, 1208, 1264, 1510, 1580, 1817, 1840, 2416, 3020, 3160, 3473, 3634, 6040, 6320, 6946, 7268, 9085, 11929, 12080, 13892, 14536, 17365, 18170, 23858, 27784, 29072, 34730, 36340, 47716, 55568, 59645, 69460, 72680, 95432, 119290, 138920, 145360, 190864, 238580, 274367, 277840, 477160, 548734, 954320, 1097468, 1371835, 2194936, 2743670, 4389872, 5487340, 10974680, 21949360]

約数ペア:

[(1, 21949360), (2, 10974680), (4, 5487340), (5, 4389872), (8, 2743670), (10, 2194936), (16, 1371835), (20, 1097468), (23, 954320), (40, 548734), (46, 477160), (79, 277840), (80, 274367), (92, 238580), (115, 190864), (151, 145360), (158, 138920), (184, 119290), (230, 95432), (302, 72680), (316, 69460), (368, 59645), (395, 55568), (460, 47716), (604, 36340), (632, 34730), (755, 29072), (790, 27784), (920, 23858), (1208, 18170), (1264, 17365), (1510, 14536), (1580, 13892), (1817, 12080), (1840, 11929), (2416, 9085), (3020, 7268), (3160, 6946), (3473, 6320), (3634, 6040)]