12220455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2161}}^1$

素因数の和:2211

約数の個数: 32

約数和(自身を含む): 21792960

約数和(自身を除く): 9572505

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 195, 377, 435, 1131, 1885, 2161, 5655, 6483, 10805, 28093, 32415, 62669, 84279, 140465, 188007, 313345, 421395, 814697, 940035, 2444091, 4073485, 12220455]

約数ペア:

[(1, 12220455), (3, 4073485), (5, 2444091), (13, 940035), (15, 814697), (29, 421395), (39, 313345), (65, 188007), (87, 140465), (145, 84279), (195, 62669), (377, 32415), (435, 28093), (1131, 10805), (1885, 6483), (2161, 5655)]