129718280

素因数分解:

$2^3\times 5^1\times {\mathrm{937}}^1\times {\mathrm{3461}}^1$

素因数の和:4409

約数の個数: 32

約数和(自身を含む): 292262040

約数和(自身を除く): 162543760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 937, 1874, 3461, 3748, 4685, 6922, 7496, 9370, 13844, 17305, 18740, 27688, 34610, 37480, 69220, 138440, 3242957, 6485914, 12971828, 16214785, 25943656, 32429570, 64859140, 129718280]

約数ペア:

[(1, 129718280), (2, 64859140), (4, 32429570), (5, 25943656), (8, 16214785), (10, 12971828), (20, 6485914), (40, 3242957), (937, 138440), (1874, 69220), (3461, 37480), (3748, 34610), (4685, 27688), (6922, 18740), (7496, 17305), (9370, 13844)]