18845820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14957}}^1$

素因数の和:14979

約数の個数: 72

約数和(自身を含む): 65336544

約数和(自身を除く): 46490724

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 14957, 29914, 44871, 59828, 74785, 89742, 104699, 134613, 149570, 179484, 209398, 224355, 269226, 299140, 314097, 418796, 448710, 523495, 538452, 628194, 673065, 897420, 942291, 1046990, 1256388, 1346130, 1570485, 1884582, 2093980, 2692260, 3140970, 3769164, 4711455, 6281940, 9422910, 18845820]

約数ペア:

[(1, 18845820), (2, 9422910), (3, 6281940), (4, 4711455), (5, 3769164), (6, 3140970), (7, 2692260), (9, 2093980), (10, 1884582), (12, 1570485), (14, 1346130), (15, 1256388), (18, 1046990), (20, 942291), (21, 897420), (28, 673065), (30, 628194), (35, 538452), (36, 523495), (42, 448710), (45, 418796), (60, 314097), (63, 299140), (70, 269226), (84, 224355), (90, 209398), (105, 179484), (126, 149570), (140, 134613), (180, 104699), (210, 89742), (252, 74785), (315, 59828), (420, 44871), (630, 29914), (1260, 14957)]