20266064

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 29730736

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 449, 496, 728, 806, 868, 898, 1456, 1612, 1736, 1796, 2821, 3143, 3224, 3472, 3592, 5642, 5837, 6286, 6448, 7184, 11284, 11674, 12572, 13919, 22568, 23348, 25144, 27838, 40859, 45136, 46696, 50288, 55676, 81718, 93392, 97433, 111352, 163436, 180947, 194866, 222704, 326872, 361894, 389732, 653744, 723788, 779464, 1266629, 1447576, 1558928, 2533258, 2895152, 5066516, 10133032, 20266064]

約数ペア:

[(1, 20266064), (2, 10133032), (4, 5066516), (7, 2895152), (8, 2533258), (13, 1558928), (14, 1447576), (16, 1266629), (26, 779464), (28, 723788), (31, 653744), (52, 389732), (56, 361894), (62, 326872), (91, 222704), (104, 194866), (112, 180947), (124, 163436), (182, 111352), (208, 97433), (217, 93392), (248, 81718), (364, 55676), (403, 50288), (434, 46696), (449, 45136), (496, 40859), (728, 27838), (806, 25144), (868, 23348), (898, 22568), (1456, 13919), (1612, 12572), (1736, 11674), (1796, 11284), (2821, 7184), (3143, 6448), (3224, 6286), (3472, 5837), (3592, 5642)]