399931812

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{20089}}^1$

素因数の和:20185

約数の個数: 72

約数和(自身を含む): 1170041600

約数和(自身を除く): 770109788

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1106, 1422, 1659, 2212, 2844, 3318, 4977, 6636, 9954, 19908, 20089, 40178, 60267, 80356, 120534, 140623, 180801, 241068, 281246, 361602, 421869, 562492, 723204, 843738, 1265607, 1587031, 1687476, 2531214, 3174062, 4761093, 5062428, 6348124, 9522186, 11109217, 14283279, 19044372, 22218434, 28566558, 33327651, 44436868, 57133116, 66655302, 99982953, 133310604, 199965906, 399931812]

約数ペア:

[(1, 399931812), (2, 199965906), (3, 133310604), (4, 99982953), (6, 66655302), (7, 57133116), (9, 44436868), (12, 33327651), (14, 28566558), (18, 22218434), (21, 19044372), (28, 14283279), (36, 11109217), (42, 9522186), (63, 6348124), (79, 5062428), (84, 4761093), (126, 3174062), (158, 2531214), (237, 1687476), (252, 1587031), (316, 1265607), (474, 843738), (553, 723204), (711, 562492), (948, 421869), (1106, 361602), (1422, 281246), (1659, 241068), (2212, 180801), (2844, 140623), (3318, 120534), (4977, 80356), (6636, 60267), (9954, 40178), (19908, 20089)]