12121980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15541}}^1$

素因数の和:15566

約数の個数: 48

約数和(自身を含む): 36554784

約数和(自身を除く): 24432804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 15541, 31082, 46623, 62164, 77705, 93246, 155410, 186492, 202033, 233115, 310820, 404066, 466230, 606099, 808132, 932460, 1010165, 1212198, 2020330, 2424396, 3030495, 4040660, 6060990, 12121980]

約数ペア:

[(1, 12121980), (2, 6060990), (3, 4040660), (4, 3030495), (5, 2424396), (6, 2020330), (10, 1212198), (12, 1010165), (13, 932460), (15, 808132), (20, 606099), (26, 466230), (30, 404066), (39, 310820), (52, 233115), (60, 202033), (65, 186492), (78, 155410), (130, 93246), (156, 77705), (195, 62164), (260, 46623), (390, 31082), (780, 15541)]