18815625

素因数分解:

$3^3\times 5^5\times {\mathrm{223}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 16182135

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 223, 225, 375, 625, 669, 675, 1115, 1125, 1875, 2007, 3125, 3345, 3375, 5575, 5625, 6021, 9375, 10035, 16725, 16875, 27875, 28125, 30105, 50175, 83625, 84375, 139375, 150525, 250875, 418125, 696875, 752625, 1254375, 2090625, 3763125, 6271875, 18815625]

約数ペア:

[(1, 18815625), (3, 6271875), (5, 3763125), (9, 2090625), (15, 1254375), (25, 752625), (27, 696875), (45, 418125), (75, 250875), (125, 150525), (135, 139375), (223, 84375), (225, 83625), (375, 50175), (625, 30105), (669, 28125), (675, 27875), (1115, 16875), (1125, 16725), (1875, 10035), (2007, 9375), (3125, 6021), (3345, 5625), (3375, 5575)]