257180508

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{20353}}^1$

素因数の和:20385

約数の個数: 72

約数和(自身を含む): 726067888

約数和(自身を除く): 468887380

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 2106, 3159, 4212, 6318, 12636, 20353, 40706, 61059, 81412, 122118, 183177, 244236, 264589, 366354, 529178, 549531, 732708, 793767, 1058356, 1099062, 1587534, 1648593, 2198124, 2381301, 3175068, 3297186, 4762602, 4945779, 6594372, 7143903, 9525204, 9891558, 14287806, 19783116, 21431709, 28575612, 42863418, 64295127, 85726836, 128590254, 257180508]

約数ペア:

[(1, 257180508), (2, 128590254), (3, 85726836), (4, 64295127), (6, 42863418), (9, 28575612), (12, 21431709), (13, 19783116), (18, 14287806), (26, 9891558), (27, 9525204), (36, 7143903), (39, 6594372), (52, 4945779), (54, 4762602), (78, 3297186), (81, 3175068), (108, 2381301), (117, 2198124), (156, 1648593), (162, 1587534), (234, 1099062), (243, 1058356), (324, 793767), (351, 732708), (468, 549531), (486, 529178), (702, 366354), (972, 264589), (1053, 244236), (1404, 183177), (2106, 122118), (3159, 81412), (4212, 61059), (6318, 40706), (12636, 20353)]