81155408

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{2657}}^1$

素因数の和:2771

約数の個数: 40

約数和(自身を含む): 166114368

約数和(自身を除く): 84958960

約数列:

[1, 2, 4, 8, 16, 23, 46, 83, 92, 166, 184, 332, 368, 664, 1328, 1909, 2657, 3818, 5314, 7636, 10628, 15272, 21256, 30544, 42512, 61111, 122222, 220531, 244444, 441062, 488888, 882124, 977776, 1764248, 3528496, 5072213, 10144426, 20288852, 40577704, 81155408]

約数ペア:

[(1, 81155408), (2, 40577704), (4, 20288852), (8, 10144426), (16, 5072213), (23, 3528496), (46, 1764248), (83, 977776), (92, 882124), (166, 488888), (184, 441062), (332, 244444), (368, 220531), (664, 122222), (1328, 61111), (1909, 42512), (2657, 30544), (3818, 21256), (5314, 15272), (7636, 10628)]