98781980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{40819}}^1$

素因数の和:40850

約数の個数: 36

約数和(自身を含む): 228020520

約数和(自身を除く): 129238540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 40819, 81638, 163276, 204095, 408190, 449009, 816380, 898018, 1796036, 2245045, 4490090, 4939099, 8980180, 9878198, 19756396, 24695495, 49390990, 98781980]

約数ペア:

[(1, 98781980), (2, 49390990), (4, 24695495), (5, 19756396), (10, 9878198), (11, 8980180), (20, 4939099), (22, 4490090), (44, 2245045), (55, 1796036), (110, 898018), (121, 816380), (220, 449009), (242, 408190), (484, 204095), (605, 163276), (1210, 81638), (2420, 40819)]