28201960

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2621}}^1$

素因数の和:2901

約数の個数: 32

約数和(自身を含む): 63714600

約数和(自身を除く): 35512640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2621, 2690, 5242, 5380, 10484, 10760, 13105, 20968, 26210, 52420, 104840, 705049, 1410098, 2820196, 3525245, 5640392, 7050490, 14100980, 28201960]

約数ペア:

[(1, 28201960), (2, 14100980), (4, 7050490), (5, 5640392), (8, 3525245), (10, 2820196), (20, 1410098), (40, 705049), (269, 104840), (538, 52420), (1076, 26210), (1345, 20968), (2152, 13105), (2621, 10760), (2690, 10484), (5242, 5380)]