626625140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1\times {\mathrm{971}}^1$

素因数の和:1808

約数の個数: 48

約数和(自身を含む): 1351111104

約数和(自身を除く): 724485964

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 787, 820, 971, 1574, 1942, 3148, 3884, 3935, 4855, 7870, 9710, 15740, 19420, 32267, 39811, 64534, 79622, 129068, 159244, 161335, 199055, 322670, 398110, 645340, 764177, 796220, 1528354, 3056708, 3820885, 7641770, 15283540, 31331257, 62662514, 125325028, 156656285, 313312570, 626625140]

約数ペア:

[(1, 626625140), (2, 313312570), (4, 156656285), (5, 125325028), (10, 62662514), (20, 31331257), (41, 15283540), (82, 7641770), (164, 3820885), (205, 3056708), (410, 1528354), (787, 796220), (820, 764177), (971, 645340), (1574, 398110), (1942, 322670), (3148, 199055), (3884, 161335), (3935, 159244), (4855, 129068), (7870, 79622), (9710, 64534), (15740, 39811), (19420, 32267)]