68440040

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{7159}}^1$

素因数の和:7409

約数の個数: 32

約数和(自身を含む): 154656000

約数和(自身を除く): 86215960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 7159, 9560, 14318, 28636, 35795, 57272, 71590, 143180, 286360, 1711001, 3422002, 6844004, 8555005, 13688008, 17110010, 34220020, 68440040]

約数ペア:

[(1, 68440040), (2, 34220020), (4, 17110010), (5, 13688008), (8, 8555005), (10, 6844004), (20, 3422002), (40, 1711001), (239, 286360), (478, 143180), (956, 71590), (1195, 57272), (1912, 35795), (2390, 28636), (4780, 14318), (7159, 9560)]