12658660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{12917}}^1$

素因数の和:12940

約数の個数: 36

約数和(自身を含む): 30925692

約数和(自身を除く): 18267032

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 12917, 25834, 51668, 64585, 90419, 129170, 180838, 258340, 361676, 452095, 632933, 904190, 1265866, 1808380, 2531732, 3164665, 6329330, 12658660]

約数ペア:

[(1, 12658660), (2, 6329330), (4, 3164665), (5, 2531732), (7, 1808380), (10, 1265866), (14, 904190), (20, 632933), (28, 452095), (35, 361676), (49, 258340), (70, 180838), (98, 129170), (140, 90419), (196, 64585), (245, 51668), (490, 25834), (980, 12917)]