1800156980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2903479}}^1$

素因数の和:2903519

約数の個数: 24

約数和(自身を含む): 3902277120

約数和(自身を除く): 2102120140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2903479, 5806958, 11613916, 14517395, 29034790, 58069580, 90007849, 180015698, 360031396, 450039245, 900078490, 1800156980]

約数ペア:

[(1, 1800156980), (2, 900078490), (4, 450039245), (5, 360031396), (10, 180015698), (20, 90007849), (31, 58069580), (62, 29034790), (124, 14517395), (155, 11613916), (310, 5806958), (620, 2903479)]