78802725

素因数分解:

$3^1\times 5^2\times {\mathrm{101}}^2\times {\mathrm{103}}^1$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 132867488

約数和(自身を除く): 54064763

約数列:

[1, 3, 5, 15, 25, 75, 101, 103, 303, 309, 505, 515, 1515, 1545, 2525, 2575, 7575, 7725, 10201, 10403, 30603, 31209, 51005, 52015, 153015, 156045, 255025, 260075, 765075, 780225, 1050703, 3152109, 5253515, 15760545, 26267575, 78802725]

約数ペア:

[(1, 78802725), (3, 26267575), (5, 15760545), (15, 5253515), (25, 3152109), (75, 1050703), (101, 780225), (103, 765075), (303, 260075), (309, 255025), (505, 156045), (515, 153015), (1515, 52015), (1545, 51005), (2525, 31209), (2575, 30603), (7575, 10403), (7725, 10201)]