2157980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{577}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 5243616

約数和(自身を除く): 3085636

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 577, 748, 935, 1154, 1870, 2308, 2885, 3740, 5770, 6347, 9809, 11540, 12694, 19618, 25388, 31735, 39236, 49045, 63470, 98090, 107899, 126940, 196180, 215798, 431596, 539495, 1078990, 2157980]

約数ペア:

[(1, 2157980), (2, 1078990), (4, 539495), (5, 431596), (10, 215798), (11, 196180), (17, 126940), (20, 107899), (22, 98090), (34, 63470), (44, 49045), (55, 39236), (68, 31735), (85, 25388), (110, 19618), (170, 12694), (187, 11540), (220, 9809), (340, 6347), (374, 5770), (577, 3740), (748, 2885), (935, 2308), (1154, 1870)]