12977840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5233}}^1$

素因数の和:5277

約数の個数: 40

約数和(自身を含む): 31152768

約数和(自身を除く): 18174928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5233, 10466, 20932, 26165, 41864, 52330, 83728, 104660, 162223, 209320, 324446, 418640, 648892, 811115, 1297784, 1622230, 2595568, 3244460, 6488920, 12977840]

約数ペア:

[(1, 12977840), (2, 6488920), (4, 3244460), (5, 2595568), (8, 1622230), (10, 1297784), (16, 811115), (20, 648892), (31, 418640), (40, 324446), (62, 209320), (80, 162223), (124, 104660), (155, 83728), (248, 52330), (310, 41864), (496, 26165), (620, 20932), (1240, 10466), (2480, 5233)]