21365600

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1571}}^1$

素因数の和:1608

約数の個数: 72

約数和(自身を含む): 55262088

約数和(自身を除く): 33896488

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 136, 160, 170, 200, 272, 340, 400, 425, 544, 680, 800, 850, 1360, 1571, 1700, 2720, 3142, 3400, 6284, 6800, 7855, 12568, 13600, 15710, 25136, 26707, 31420, 39275, 50272, 53414, 62840, 78550, 106828, 125680, 133535, 157100, 213656, 251360, 267070, 314200, 427312, 534140, 628400, 667675, 854624, 1068280, 1256800, 1335350, 2136560, 2670700, 4273120, 5341400, 10682800, 21365600]

約数ペア:

[(1, 21365600), (2, 10682800), (4, 5341400), (5, 4273120), (8, 2670700), (10, 2136560), (16, 1335350), (17, 1256800), (20, 1068280), (25, 854624), (32, 667675), (34, 628400), (40, 534140), (50, 427312), (68, 314200), (80, 267070), (85, 251360), (100, 213656), (136, 157100), (160, 133535), (170, 125680), (200, 106828), (272, 78550), (340, 62840), (400, 53414), (425, 50272), (544, 39275), (680, 31420), (800, 26707), (850, 25136), (1360, 15710), (1571, 13600), (1700, 12568), (2720, 7855), (3142, 6800), (3400, 6284)]