28735005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1459}}^1$

素因数の和:1581

約数の個数: 32

約数和(自身を含む): 50037120

約数和(自身を除く): 21302115

約数列:

[1, 3, 5, 13, 15, 39, 65, 101, 195, 303, 505, 1313, 1459, 1515, 3939, 4377, 6565, 7295, 18967, 19695, 21885, 56901, 94835, 147359, 284505, 442077, 736795, 1915667, 2210385, 5747001, 9578335, 28735005]

約数ペア:

[(1, 28735005), (3, 9578335), (5, 5747001), (13, 2210385), (15, 1915667), (39, 736795), (65, 442077), (101, 284505), (195, 147359), (303, 94835), (505, 56901), (1313, 21885), (1459, 19695), (1515, 18967), (3939, 7295), (4377, 6565)]