20100476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7489}}^1$

素因数の和:7565

約数の個数: 24

約数和(自身を含む): 39007920

約数和(自身を除く): 18907444

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 7489, 14978, 29956, 82379, 164758, 329516, 456829, 913658, 1827316, 5025119, 10050238, 20100476]

約数ペア:

[(1, 20100476), (2, 10050238), (4, 5025119), (11, 1827316), (22, 913658), (44, 456829), (61, 329516), (122, 164758), (244, 82379), (671, 29956), (1342, 14978), (2684, 7489)]