3965625

素因数分解:

$3^3\times 5^5\times {\mathrm{47}}^1$

素因数の和:81

約数の個数: 48

約数和(自身を含む): 7499520

約数和(自身を除く): 3533895

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 125, 135, 141, 225, 235, 375, 423, 625, 675, 705, 1125, 1175, 1269, 1875, 2115, 3125, 3375, 3525, 5625, 5875, 6345, 9375, 10575, 16875, 17625, 28125, 29375, 31725, 52875, 84375, 88125, 146875, 158625, 264375, 440625, 793125, 1321875, 3965625]

約数ペア:

[(1, 3965625), (3, 1321875), (5, 793125), (9, 440625), (15, 264375), (25, 158625), (27, 146875), (45, 88125), (47, 84375), (75, 52875), (125, 31725), (135, 29375), (141, 28125), (225, 17625), (235, 16875), (375, 10575), (423, 9375), (625, 6345), (675, 5875), (705, 5625), (1125, 3525), (1175, 3375), (1269, 3125), (1875, 2115)]