78812980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{811}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 171065664

約数和(自身を除く): 92252684

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 113, 172, 215, 226, 430, 452, 565, 811, 860, 1130, 1622, 2260, 3244, 4055, 4859, 8110, 9718, 16220, 19436, 24295, 34873, 48590, 69746, 91643, 97180, 139492, 174365, 183286, 348730, 366572, 458215, 697460, 916430, 1832860, 3940649, 7881298, 15762596, 19703245, 39406490, 78812980]

約数ペア:

[(1, 78812980), (2, 39406490), (4, 19703245), (5, 15762596), (10, 7881298), (20, 3940649), (43, 1832860), (86, 916430), (113, 697460), (172, 458215), (215, 366572), (226, 348730), (430, 183286), (452, 174365), (565, 139492), (811, 97180), (860, 91643), (1130, 69746), (1622, 48590), (2260, 34873), (3244, 24295), (4055, 19436), (4859, 16220), (8110, 9718)]