68415580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 159667200

約数和(自身を除く): 91251620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 53, 76, 79, 86, 95, 106, 158, 172, 190, 212, 215, 265, 316, 380, 395, 430, 530, 790, 817, 860, 1007, 1060, 1501, 1580, 1634, 2014, 2279, 3002, 3268, 3397, 4028, 4085, 4187, 4558, 5035, 6004, 6794, 7505, 8170, 8374, 9116, 10070, 11395, 13588, 15010, 16340, 16748, 16985, 20140, 20935, 22790, 30020, 33970, 41870, 43301, 45580, 64543, 67940, 79553, 83740, 86602, 129086, 159106, 173204, 180041, 216505, 258172, 318212, 322715, 360082, 397765, 433010, 645430, 720164, 795530, 866020, 900205, 1290860, 1591060, 1800410, 3420779, 3600820, 6841558, 13683116, 17103895, 34207790, 68415580]

約数ペア:

[(1, 68415580), (2, 34207790), (4, 17103895), (5, 13683116), (10, 6841558), (19, 3600820), (20, 3420779), (38, 1800410), (43, 1591060), (53, 1290860), (76, 900205), (79, 866020), (86, 795530), (95, 720164), (106, 645430), (158, 433010), (172, 397765), (190, 360082), (212, 322715), (215, 318212), (265, 258172), (316, 216505), (380, 180041), (395, 173204), (430, 159106), (530, 129086), (790, 86602), (817, 83740), (860, 79553), (1007, 67940), (1060, 64543), (1501, 45580), (1580, 43301), (1634, 41870), (2014, 33970), (2279, 30020), (3002, 22790), (3268, 20935), (3397, 20140), (4028, 16985), (4085, 16748), (4187, 16340), (4558, 15010), (5035, 13588), (6004, 11395), (6794, 10070), (7505, 9116), (8170, 8374)]