990428750

素因数分解:

$2^1\times 5^4\times {\mathrm{163}}^1\times {\mathrm{4861}}^1$

素因数の和:5046

約数の個数: 40

約数和(自身を含む): 1868233224

約数和(自身を除く): 877804474

約数列:

[1, 2, 5, 10, 25, 50, 125, 163, 250, 326, 625, 815, 1250, 1630, 4075, 4861, 8150, 9722, 20375, 24305, 40750, 48610, 101875, 121525, 203750, 243050, 607625, 792343, 1215250, 1584686, 3038125, 3961715, 6076250, 7923430, 19808575, 39617150, 99042875, 198085750, 495214375, 990428750]

約数ペア:

[(1, 990428750), (2, 495214375), (5, 198085750), (10, 99042875), (25, 39617150), (50, 19808575), (125, 7923430), (163, 6076250), (250, 3961715), (326, 3038125), (625, 1584686), (815, 1215250), (1250, 792343), (1630, 607625), (4075, 243050), (4861, 203750), (8150, 121525), (9722, 101875), (20375, 48610), (24305, 40750)]