178648730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{8753}}^1$

素因数の和:8930

約数の個数: 32

約数和(自身を含む): 348549264

約数和(自身を除く): 169900534

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 8753, 10205, 17506, 20410, 43765, 87530, 113789, 227578, 568945, 1137890, 1374221, 2748442, 6871105, 13742210, 17864873, 35729746, 89324365, 178648730]

約数ペア:

[(1, 178648730), (2, 89324365), (5, 35729746), (10, 17864873), (13, 13742210), (26, 6871105), (65, 2748442), (130, 1374221), (157, 1137890), (314, 568945), (785, 227578), (1570, 113789), (2041, 87530), (4082, 43765), (8753, 20410), (10205, 17506)]