20958350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{233}}^1\times {\mathrm{257}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 44916768

約数和(自身を除く): 23958418

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 233, 257, 350, 466, 514, 1165, 1285, 1631, 1799, 2330, 2570, 3262, 3598, 5825, 6425, 8155, 8995, 11650, 12850, 16310, 17990, 40775, 44975, 59881, 81550, 89950, 119762, 299405, 419167, 598810, 838334, 1497025, 2095835, 2994050, 4191670, 10479175, 20958350]

約数ペア:

[(1, 20958350), (2, 10479175), (5, 4191670), (7, 2994050), (10, 2095835), (14, 1497025), (25, 838334), (35, 598810), (50, 419167), (70, 299405), (175, 119762), (233, 89950), (257, 81550), (350, 59881), (466, 44975), (514, 40775), (1165, 17990), (1285, 16310), (1631, 12850), (1799, 11650), (2330, 8995), (2570, 8155), (3262, 6425), (3598, 5825)]