25621720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{919}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 62596800

約数和(自身を除く): 36975080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 919, 1394, 1640, 1838, 2788, 3485, 3676, 4595, 5576, 6970, 7352, 9190, 13940, 15623, 18380, 27880, 31246, 36760, 37679, 62492, 75358, 78115, 124984, 150716, 156230, 188395, 301432, 312460, 376790, 624920, 640543, 753580, 1281086, 1507160, 2562172, 3202715, 5124344, 6405430, 12810860, 25621720]

約数ペア:

[(1, 25621720), (2, 12810860), (4, 6405430), (5, 5124344), (8, 3202715), (10, 2562172), (17, 1507160), (20, 1281086), (34, 753580), (40, 640543), (41, 624920), (68, 376790), (82, 312460), (85, 301432), (136, 188395), (164, 156230), (170, 150716), (205, 124984), (328, 78115), (340, 75358), (410, 62492), (680, 37679), (697, 36760), (820, 31246), (919, 27880), (1394, 18380), (1640, 15623), (1838, 13940), (2788, 9190), (3485, 7352), (3676, 6970), (4595, 5576)]