81110876

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2213}}^1$

素因数の和:2259

約数の個数: 72

約数和(自身を含む): 190811376

約数和(自身を除く): 109700500

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 98, 119, 154, 187, 196, 238, 308, 374, 476, 539, 748, 833, 1078, 1309, 1666, 2156, 2213, 2618, 3332, 4426, 5236, 8852, 9163, 15491, 18326, 24343, 30982, 36652, 37621, 48686, 61964, 75242, 97372, 108437, 150484, 170401, 216874, 263347, 340802, 413831, 433748, 526694, 681604, 827662, 1053388, 1192807, 1655324, 1843429, 2385614, 2896817, 3686858, 4771228, 5793634, 7373716, 11587268, 20277719, 40555438, 81110876]

約数ペア:

[(1, 81110876), (2, 40555438), (4, 20277719), (7, 11587268), (11, 7373716), (14, 5793634), (17, 4771228), (22, 3686858), (28, 2896817), (34, 2385614), (44, 1843429), (49, 1655324), (68, 1192807), (77, 1053388), (98, 827662), (119, 681604), (154, 526694), (187, 433748), (196, 413831), (238, 340802), (308, 263347), (374, 216874), (476, 170401), (539, 150484), (748, 108437), (833, 97372), (1078, 75242), (1309, 61964), (1666, 48686), (2156, 37621), (2213, 36652), (2618, 30982), (3332, 24343), (4426, 18326), (5236, 15491), (8852, 9163)]