20065660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 44396352

約数和(自身を除く): 24330692

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 181, 230, 241, 362, 460, 482, 724, 905, 964, 1205, 1810, 2410, 3620, 4163, 4820, 5543, 8326, 11086, 16652, 20815, 22172, 27715, 41630, 43621, 55430, 83260, 87242, 110860, 174484, 218105, 436210, 872420, 1003283, 2006566, 4013132, 5016415, 10032830, 20065660]

約数ペア:

[(1, 20065660), (2, 10032830), (4, 5016415), (5, 4013132), (10, 2006566), (20, 1003283), (23, 872420), (46, 436210), (92, 218105), (115, 174484), (181, 110860), (230, 87242), (241, 83260), (362, 55430), (460, 43621), (482, 41630), (724, 27715), (905, 22172), (964, 20815), (1205, 16652), (1810, 11086), (2410, 8326), (3620, 5543), (4163, 4820)]