12976840

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{739}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 29304000

約数和(自身を除く): 16327160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 739, 878, 1478, 1756, 2195, 2956, 3512, 3695, 4390, 5912, 7390, 8780, 14780, 17560, 29560, 324421, 648842, 1297684, 1622105, 2595368, 3244210, 6488420, 12976840]

約数ペア:

[(1, 12976840), (2, 6488420), (4, 3244210), (5, 2595368), (8, 1622105), (10, 1297684), (20, 648842), (40, 324421), (439, 29560), (739, 17560), (878, 14780), (1478, 8780), (1756, 7390), (2195, 5912), (2956, 4390), (3512, 3695)]