28970775

素因数分解:

$3^2\times 5^2\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:736

約数の個数: 36

約数和(自身を含む): 52180440

約数和(自身を除く): 23209665

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 331, 389, 993, 1167, 1655, 1945, 2979, 3501, 4965, 5835, 8275, 9725, 14895, 17505, 24825, 29175, 74475, 87525, 128759, 386277, 643795, 1158831, 1931385, 3218975, 5794155, 9656925, 28970775]

約数ペア:

[(1, 28970775), (3, 9656925), (5, 5794155), (9, 3218975), (15, 1931385), (25, 1158831), (45, 643795), (75, 386277), (225, 128759), (331, 87525), (389, 74475), (993, 29175), (1167, 24825), (1655, 17505), (1945, 14895), (2979, 9725), (3501, 8275), (4965, 5835)]