15972220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 37094400

約数和(自身を除く): 21122180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 919, 1580, 1738, 1838, 3476, 3676, 4345, 4595, 8690, 9190, 10109, 17380, 18380, 20218, 40436, 50545, 72601, 101090, 145202, 202180, 290404, 363005, 726010, 798611, 1452020, 1597222, 3194444, 3993055, 7986110, 15972220]

約数ペア:

[(1, 15972220), (2, 7986110), (4, 3993055), (5, 3194444), (10, 1597222), (11, 1452020), (20, 798611), (22, 726010), (44, 363005), (55, 290404), (79, 202180), (110, 145202), (158, 101090), (220, 72601), (316, 50545), (395, 40436), (790, 20218), (869, 18380), (919, 17380), (1580, 10109), (1738, 9190), (1838, 8690), (3476, 4595), (3676, 4345)]