2019196990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1231}}^1\times {\mathrm{2689}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 3698513280

約数和(自身を除く): 1679316290

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 1231, 2462, 2689, 5378, 6155, 12310, 13445, 26890, 75091, 150182, 164029, 328058, 375455, 750910, 820145, 1640290, 3310159, 6620318, 16550795, 33101590, 201919699, 403839398, 1009598495, 2019196990]

約数ペア:

[(1, 2019196990), (2, 1009598495), (5, 403839398), (10, 201919699), (61, 33101590), (122, 16550795), (305, 6620318), (610, 3310159), (1231, 1640290), (2462, 820145), (2689, 750910), (5378, 375455), (6155, 328058), (12310, 164029), (13445, 150182), (26890, 75091)]