68988340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{827}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 149954112

約数和(自身を除く): 80965772

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 388, 430, 485, 827, 860, 970, 1654, 1940, 3308, 4135, 4171, 8270, 8342, 16540, 16684, 20855, 35561, 41710, 71122, 80219, 83420, 142244, 160438, 177805, 320876, 355610, 401095, 711220, 802190, 1604380, 3449417, 6898834, 13797668, 17247085, 34494170, 68988340]

約数ペア:

[(1, 68988340), (2, 34494170), (4, 17247085), (5, 13797668), (10, 6898834), (20, 3449417), (43, 1604380), (86, 802190), (97, 711220), (172, 401095), (194, 355610), (215, 320876), (388, 177805), (430, 160438), (485, 142244), (827, 83420), (860, 80219), (970, 71122), (1654, 41710), (1940, 35561), (3308, 20855), (4135, 16684), (4171, 16540), (8270, 8342)]