18693590

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 34572096

約数和(自身を除く): 15878506

約数列:

[1, 2, 5, 10, 71, 113, 142, 226, 233, 355, 466, 565, 710, 1130, 1165, 2330, 8023, 16046, 16543, 26329, 33086, 40115, 52658, 80230, 82715, 131645, 165430, 263290, 1869359, 3738718, 9346795, 18693590]

約数ペア:

[(1, 18693590), (2, 9346795), (5, 3738718), (10, 1869359), (71, 263290), (113, 165430), (142, 131645), (226, 82715), (233, 80230), (355, 52658), (466, 40115), (565, 33086), (710, 26329), (1130, 16543), (1165, 16046), (2330, 8023)]