20256684

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1009}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 54297600

約数和(自身を除く): 34040916

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 239, 478, 717, 956, 1009, 1434, 1673, 2018, 2868, 3027, 3346, 4036, 5019, 6054, 6692, 7063, 10038, 12108, 14126, 20076, 21189, 28252, 42378, 84756, 241151, 482302, 723453, 964604, 1446906, 1688057, 2893812, 3376114, 5064171, 6752228, 10128342, 20256684]

約数ペア:

[(1, 20256684), (2, 10128342), (3, 6752228), (4, 5064171), (6, 3376114), (7, 2893812), (12, 1688057), (14, 1446906), (21, 964604), (28, 723453), (42, 482302), (84, 241151), (239, 84756), (478, 42378), (717, 28252), (956, 21189), (1009, 20076), (1434, 14126), (1673, 12108), (2018, 10038), (2868, 7063), (3027, 6692), (3346, 6054), (4036, 5019)]