858451390

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{419}}^1\times {\mathrm{971}}^1$

素因数の和:1608

約数の個数: 32

約数和(自身を含む): 1557843840

約数和(自身を除く): 699392450

約数列:

[1, 2, 5, 10, 211, 419, 422, 838, 971, 1055, 1942, 2095, 2110, 4190, 4855, 9710, 88409, 176818, 204881, 406849, 409762, 442045, 813698, 884090, 1024405, 2034245, 2048810, 4068490, 85845139, 171690278, 429225695, 858451390]

約数ペア:

[(1, 858451390), (2, 429225695), (5, 171690278), (10, 85845139), (211, 4068490), (419, 2048810), (422, 2034245), (838, 1024405), (971, 884090), (1055, 813698), (1942, 442045), (2095, 409762), (2110, 406849), (4190, 204881), (4855, 176818), (9710, 88409)]