12810860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{919}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 29211840

約数和(自身を除く): 16400980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 919, 1394, 1838, 2788, 3485, 3676, 4595, 6970, 9190, 13940, 15623, 18380, 31246, 37679, 62492, 75358, 78115, 150716, 156230, 188395, 312460, 376790, 640543, 753580, 1281086, 2562172, 3202715, 6405430, 12810860]

約数ペア:

[(1, 12810860), (2, 6405430), (4, 3202715), (5, 2562172), (10, 1281086), (17, 753580), (20, 640543), (34, 376790), (41, 312460), (68, 188395), (82, 156230), (85, 150716), (164, 78115), (170, 75358), (205, 62492), (340, 37679), (410, 31246), (697, 18380), (820, 15623), (919, 13940), (1394, 9190), (1838, 6970), (2788, 4595), (3485, 3676)]