201721180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{4049}}^1$

素因数の和:4158

約数の個数: 48

約数和(自身を含む): 440899200

約数和(自身を除く): 239178020

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 188, 212, 235, 265, 470, 530, 940, 1060, 2491, 4049, 4982, 8098, 9964, 12455, 16196, 20245, 24910, 40490, 49820, 80980, 190303, 214597, 380606, 429194, 761212, 858388, 951515, 1072985, 1903030, 2145970, 3806060, 4291940, 10086059, 20172118, 40344236, 50430295, 100860590, 201721180]

約数ペア:

[(1, 201721180), (2, 100860590), (4, 50430295), (5, 40344236), (10, 20172118), (20, 10086059), (47, 4291940), (53, 3806060), (94, 2145970), (106, 1903030), (188, 1072985), (212, 951515), (235, 858388), (265, 761212), (470, 429194), (530, 380606), (940, 214597), (1060, 190303), (2491, 80980), (4049, 49820), (4982, 40490), (8098, 24910), (9964, 20245), (12455, 16196)]