12657680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{3229}}^1$

素因数の和:3256

約数の個数: 60

約数和(自身を含む): 34244460

約数和(自身を除く): 21586780

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3229, 3920, 6458, 12916, 16145, 22603, 25832, 32290, 45206, 51664, 64580, 90412, 113015, 129160, 158221, 180824, 226030, 258320, 316442, 361648, 452060, 632884, 791105, 904120, 1265768, 1582210, 1808240, 2531536, 3164420, 6328840, 12657680]

約数ペア:

[(1, 12657680), (2, 6328840), (4, 3164420), (5, 2531536), (7, 1808240), (8, 1582210), (10, 1265768), (14, 904120), (16, 791105), (20, 632884), (28, 452060), (35, 361648), (40, 316442), (49, 258320), (56, 226030), (70, 180824), (80, 158221), (98, 129160), (112, 113015), (140, 90412), (196, 64580), (245, 51664), (280, 45206), (392, 32290), (490, 25832), (560, 22603), (784, 16145), (980, 12916), (1960, 6458), (3229, 3920)]