201178940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1\times {\mathrm{521}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 434095200

約数和(自身を除く): 232916260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 449, 521, 860, 898, 1042, 1796, 2084, 2245, 2605, 4490, 5210, 8980, 10420, 19307, 22403, 38614, 44806, 77228, 89612, 96535, 112015, 193070, 224030, 233929, 386140, 448060, 467858, 935716, 1169645, 2339290, 4678580, 10058947, 20117894, 40235788, 50294735, 100589470, 201178940]

約数ペア:

[(1, 201178940), (2, 100589470), (4, 50294735), (5, 40235788), (10, 20117894), (20, 10058947), (43, 4678580), (86, 2339290), (172, 1169645), (215, 935716), (430, 467858), (449, 448060), (521, 386140), (860, 233929), (898, 224030), (1042, 193070), (1796, 112015), (2084, 96535), (2245, 89612), (2605, 77228), (4490, 44806), (5210, 38614), (8980, 22403), (10420, 19307)]