20390664

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{2477}}^1$

素因数の和:2507

約数の個数: 64

約数和(自身を含む): 59472000

約数和(自身を除く): 39081336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 343, 392, 588, 686, 1029, 1176, 1372, 2058, 2477, 2744, 4116, 4954, 7431, 8232, 9908, 14862, 17339, 19816, 29724, 34678, 52017, 59448, 69356, 104034, 121373, 138712, 208068, 242746, 364119, 416136, 485492, 728238, 849611, 970984, 1456476, 1699222, 2548833, 2912952, 3398444, 5097666, 6796888, 10195332, 20390664]

約数ペア:

[(1, 20390664), (2, 10195332), (3, 6796888), (4, 5097666), (6, 3398444), (7, 2912952), (8, 2548833), (12, 1699222), (14, 1456476), (21, 970984), (24, 849611), (28, 728238), (42, 485492), (49, 416136), (56, 364119), (84, 242746), (98, 208068), (147, 138712), (168, 121373), (196, 104034), (294, 69356), (343, 59448), (392, 52017), (588, 34678), (686, 29724), (1029, 19816), (1176, 17339), (1372, 14862), (2058, 9908), (2477, 8232), (2744, 7431), (4116, 4954)]