15659120

素因数分解:

$2^4\times 5^1\times {\mathrm{195739}}^1$

素因数の和:195752

約数の個数: 20

約数和(自身を含む): 36407640

約数和(自身を除く): 20748520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195739, 391478, 782956, 978695, 1565912, 1957390, 3131824, 3914780, 7829560, 15659120]

約数ペア:

[(1, 15659120), (2, 7829560), (4, 3914780), (5, 3131824), (8, 1957390), (10, 1565912), (16, 978695), (20, 782956), (40, 391478), (80, 195739)]