219375

素因数分解:

$3^3\times 5^4\times {\mathrm{13}}^1$

素因数の和:42

約数の個数: 40

約数和(自身を含む): 437360

約数和(自身を除く): 217985

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 125, 135, 195, 225, 325, 351, 375, 585, 625, 675, 975, 1125, 1625, 1755, 1875, 2925, 3375, 4875, 5625, 8125, 8775, 14625, 16875, 24375, 43875, 73125, 219375]

約数ペア:

[(1, 219375), (3, 73125), (5, 43875), (9, 24375), (13, 16875), (15, 14625), (25, 8775), (27, 8125), (39, 5625), (45, 4875), (65, 3375), (75, 2925), (117, 1875), (125, 1755), (135, 1625), (195, 1125), (225, 975), (325, 675), (351, 625), (375, 585)]