25352680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 59097600

約数和(自身を除く): 33744920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 79, 113, 142, 158, 226, 284, 316, 355, 395, 452, 565, 568, 632, 710, 790, 904, 1130, 1420, 1580, 2260, 2840, 3160, 4520, 5609, 8023, 8927, 11218, 16046, 17854, 22436, 28045, 32092, 35708, 40115, 44635, 44872, 56090, 64184, 71416, 80230, 89270, 112180, 160460, 178540, 224360, 320920, 357080, 633817, 1267634, 2535268, 3169085, 5070536, 6338170, 12676340, 25352680]

約数ペア:

[(1, 25352680), (2, 12676340), (4, 6338170), (5, 5070536), (8, 3169085), (10, 2535268), (20, 1267634), (40, 633817), (71, 357080), (79, 320920), (113, 224360), (142, 178540), (158, 160460), (226, 112180), (284, 89270), (316, 80230), (355, 71416), (395, 64184), (452, 56090), (565, 44872), (568, 44635), (632, 40115), (710, 35708), (790, 32092), (904, 28045), (1130, 22436), (1420, 17854), (1580, 16046), (2260, 11218), (2840, 8927), (3160, 8023), (4520, 5609)]