68266620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19961}}^1$

素因数の和:19995

約数の個数: 72

約数和(自身を含む): 217985040

約数和(自身を除く): 149718420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 19961, 39922, 59883, 79844, 99805, 119766, 179649, 199610, 239532, 299415, 359298, 379259, 399220, 598830, 718596, 758518, 898245, 1137777, 1197660, 1517036, 1796490, 1896295, 2275554, 3413331, 3592980, 3792590, 4551108, 5688885, 6826662, 7585180, 11377770, 13653324, 17066655, 22755540, 34133310, 68266620]

約数ペア:

[(1, 68266620), (2, 34133310), (3, 22755540), (4, 17066655), (5, 13653324), (6, 11377770), (9, 7585180), (10, 6826662), (12, 5688885), (15, 4551108), (18, 3792590), (19, 3592980), (20, 3413331), (30, 2275554), (36, 1896295), (38, 1796490), (45, 1517036), (57, 1197660), (60, 1137777), (76, 898245), (90, 758518), (95, 718596), (114, 598830), (171, 399220), (180, 379259), (190, 359298), (228, 299415), (285, 239532), (342, 199610), (380, 179649), (570, 119766), (684, 99805), (855, 79844), (1140, 59883), (1710, 39922), (3420, 19961)]