42720280

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10369}}^1$

素因数の和:10483

約数の個数: 32

約数和(自身を含む): 97063200

約数和(自身を除く): 54342920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 10369, 20738, 41476, 51845, 82952, 103690, 207380, 414760, 1068007, 2136014, 4272028, 5340035, 8544056, 10680070, 21360140, 42720280]

約数ペア:

[(1, 42720280), (2, 21360140), (4, 10680070), (5, 8544056), (8, 5340035), (10, 4272028), (20, 2136014), (40, 1068007), (103, 414760), (206, 207380), (412, 103690), (515, 82952), (824, 51845), (1030, 41476), (2060, 20738), (4120, 10369)]