90311060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20809}}^1$

素因数の和:20856

約数の個数: 48

約数和(自身を含む): 223749120

約数和(自身を除く): 133438060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20809, 41618, 83236, 104045, 145663, 208090, 291326, 416180, 582652, 645079, 728315, 1290158, 1456630, 2580316, 2913260, 3225395, 4515553, 6450790, 9031106, 12901580, 18062212, 22577765, 45155530, 90311060]

約数ペア:

[(1, 90311060), (2, 45155530), (4, 22577765), (5, 18062212), (7, 12901580), (10, 9031106), (14, 6450790), (20, 4515553), (28, 3225395), (31, 2913260), (35, 2580316), (62, 1456630), (70, 1290158), (124, 728315), (140, 645079), (155, 582652), (217, 416180), (310, 291326), (434, 208090), (620, 145663), (868, 104045), (1085, 83236), (2170, 41618), (4340, 20809)]