68497960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 158630400

約数和(自身を除く): 90132440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 89, 142, 178, 271, 284, 355, 356, 445, 542, 568, 710, 712, 890, 1084, 1355, 1420, 1780, 2168, 2710, 2840, 3560, 5420, 6319, 10840, 12638, 19241, 24119, 25276, 31595, 38482, 48238, 50552, 63190, 76964, 96205, 96476, 120595, 126380, 153928, 192410, 192952, 241190, 252760, 384820, 482380, 769640, 964760, 1712449, 3424898, 6849796, 8562245, 13699592, 17124490, 34248980, 68497960]

約数ペア:

[(1, 68497960), (2, 34248980), (4, 17124490), (5, 13699592), (8, 8562245), (10, 6849796), (20, 3424898), (40, 1712449), (71, 964760), (89, 769640), (142, 482380), (178, 384820), (271, 252760), (284, 241190), (355, 192952), (356, 192410), (445, 153928), (542, 126380), (568, 120595), (710, 96476), (712, 96205), (890, 76964), (1084, 63190), (1355, 50552), (1420, 48238), (1780, 38482), (2168, 31595), (2710, 25276), (2840, 24119), (3560, 19241), (5420, 12638), (6319, 10840)]