20284980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1451}}^1$

素因数の和:1696

約数の個数: 48

約数和(自身を含む): 57081024

約数和(自身を除く): 36796044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 233, 466, 699, 932, 1165, 1398, 1451, 2330, 2796, 2902, 3495, 4353, 4660, 5804, 6990, 7255, 8706, 13980, 14510, 17412, 21765, 29020, 43530, 87060, 338083, 676166, 1014249, 1352332, 1690415, 2028498, 3380830, 4056996, 5071245, 6761660, 10142490, 20284980]

約数ペア:

[(1, 20284980), (2, 10142490), (3, 6761660), (4, 5071245), (5, 4056996), (6, 3380830), (10, 2028498), (12, 1690415), (15, 1352332), (20, 1014249), (30, 676166), (60, 338083), (233, 87060), (466, 43530), (699, 29020), (932, 21765), (1165, 17412), (1398, 14510), (1451, 13980), (2330, 8706), (2796, 7255), (2902, 6990), (3495, 5804), (4353, 4660)]