12428920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{44389}}^1$

素因数の和:44407

約数の個数: 32

約数和(自身を含む): 31960800

約数和(自身を除く): 19531880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 44389, 88778, 177556, 221945, 310723, 355112, 443890, 621446, 887780, 1242892, 1553615, 1775560, 2485784, 3107230, 6214460, 12428920]

約数ペア:

[(1, 12428920), (2, 6214460), (4, 3107230), (5, 2485784), (7, 1775560), (8, 1553615), (10, 1242892), (14, 887780), (20, 621446), (28, 443890), (35, 355112), (40, 310723), (56, 221945), (70, 177556), (140, 88778), (280, 44389)]