90172120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{54983}}^1$

素因数の和:55035

約数の個数: 32

約数和(自身を含む): 207839520

約数和(自身を除く): 117667400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 54983, 109966, 219932, 274915, 439864, 549830, 1099660, 2199320, 2254303, 4508606, 9017212, 11271515, 18034424, 22543030, 45086060, 90172120]

約数ペア:

[(1, 90172120), (2, 45086060), (4, 22543030), (5, 18034424), (8, 11271515), (10, 9017212), (20, 4508606), (40, 2254303), (41, 2199320), (82, 1099660), (164, 549830), (205, 439864), (328, 274915), (410, 219932), (820, 109966), (1640, 54983)]