18977771240

素因数分解:

$2^3\times 5^1\times {\mathrm{38803}}^1\times {\mathrm{12227}}^1$

素因数の和:51041

約数の個数: 32

約数和(自身を含む): 42704578080

約数和(自身を除く): 23726806840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12227, 24454, 38803, 48908, 61135, 77606, 97816, 122270, 155212, 194015, 244540, 310424, 388030, 489080, 776060, 1552120, 474444281, 948888562, 1897777124, 2372221405, 3795554248, 4744442810, 9488885620, 18977771240]

約数ペア:

[(1, 18977771240), (2, 9488885620), (4, 4744442810), (5, 3795554248), (8, 2372221405), (10, 1897777124), (20, 948888562), (40, 474444281), (12227, 1552120), (24454, 776060), (38803, 489080), (48908, 388030), (61135, 310424), (77606, 244540), (97816, 194015), (122270, 155212)]