15981020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4273}}^1$

素因数の和:4310

約数の個数: 48

約数和(自身を含む): 38773728

約数和(自身を除く): 22792708

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 4273, 8546, 17092, 21365, 42730, 47003, 72641, 85460, 94006, 145282, 188012, 235015, 290564, 363205, 470030, 726410, 799051, 940060, 1452820, 1598102, 3196204, 3995255, 7990510, 15981020]

約数ペア:

[(1, 15981020), (2, 7990510), (4, 3995255), (5, 3196204), (10, 1598102), (11, 1452820), (17, 940060), (20, 799051), (22, 726410), (34, 470030), (44, 363205), (55, 290564), (68, 235015), (85, 188012), (110, 145282), (170, 94006), (187, 85460), (220, 72641), (340, 47003), (374, 42730), (748, 21365), (935, 17092), (1870, 8546), (3740, 4273)]