12847760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3917}}^1$

素因数の和:3971

約数の個数: 40

約数和(自身を含む): 30607416

約数和(自身を除く): 17759656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 3917, 7834, 15668, 19585, 31336, 39170, 62672, 78340, 156680, 160597, 313360, 321194, 642388, 802985, 1284776, 1605970, 2569552, 3211940, 6423880, 12847760]

約数ペア:

[(1, 12847760), (2, 6423880), (4, 3211940), (5, 2569552), (8, 1605970), (10, 1284776), (16, 802985), (20, 642388), (40, 321194), (41, 313360), (80, 160597), (82, 156680), (164, 78340), (205, 62672), (328, 39170), (410, 31336), (656, 19585), (820, 15668), (1640, 7834), (3280, 3917)]