78805480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151549}}^1$

素因数の和:151573

約数の個数: 32

約数和(自身を含む): 190953000

約数和(自身を除く): 112147520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151549, 303098, 606196, 757745, 1212392, 1515490, 1970137, 3030980, 3940274, 6061960, 7880548, 9850685, 15761096, 19701370, 39402740, 78805480]

約数ペア:

[(1, 78805480), (2, 39402740), (4, 19701370), (5, 15761096), (8, 9850685), (10, 7880548), (13, 6061960), (20, 3940274), (26, 3030980), (40, 1970137), (52, 1515490), (65, 1212392), (104, 757745), (130, 606196), (260, 303098), (520, 151549)]