80872020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{49921}}^1$

素因数の和:49942

約数の個数: 60

約数和(自身を含む): 253703604

約数和(自身を除く): 172831584

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 49921, 99842, 149763, 199684, 249605, 299526, 449289, 499210, 599052, 748815, 898578, 998420, 1347867, 1497630, 1797156, 2246445, 2695734, 2995260, 4043601, 4492890, 5391468, 6739335, 8087202, 8985780, 13478670, 16174404, 20218005, 26957340, 40436010, 80872020]

約数ペア:

[(1, 80872020), (2, 40436010), (3, 26957340), (4, 20218005), (5, 16174404), (6, 13478670), (9, 8985780), (10, 8087202), (12, 6739335), (15, 5391468), (18, 4492890), (20, 4043601), (27, 2995260), (30, 2695734), (36, 2246445), (45, 1797156), (54, 1497630), (60, 1347867), (81, 998420), (90, 898578), (108, 748815), (135, 599052), (162, 499210), (180, 449289), (270, 299526), (324, 249605), (405, 199684), (540, 149763), (810, 99842), (1620, 49921)]