8220640

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{269}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 19595520

約数和(自身を除く): 11374880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 269, 382, 538, 764, 955, 1076, 1345, 1528, 1910, 2152, 2690, 3056, 3820, 4304, 5380, 6112, 7640, 8608, 10760, 15280, 21520, 30560, 43040, 51379, 102758, 205516, 256895, 411032, 513790, 822064, 1027580, 1644128, 2055160, 4110320, 8220640]

約数ペア:

[(1, 8220640), (2, 4110320), (4, 2055160), (5, 1644128), (8, 1027580), (10, 822064), (16, 513790), (20, 411032), (32, 256895), (40, 205516), (80, 102758), (160, 51379), (191, 43040), (269, 30560), (382, 21520), (538, 15280), (764, 10760), (955, 8608), (1076, 7640), (1345, 6112), (1528, 5380), (1910, 4304), (2152, 3820), (2690, 3056)]