208996875

素因数分解:

$3^3\times 5^5\times {\mathrm{2477}}^1$

素因数の和:2511

約数の個数: 48

約数和(自身を含む): 387162720

約数和(自身を除く): 178165845

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1875, 2477, 3125, 3375, 5625, 7431, 9375, 12385, 16875, 22293, 28125, 37155, 61925, 66879, 84375, 111465, 185775, 309625, 334395, 557325, 928875, 1548125, 1671975, 2786625, 4644375, 7740625, 8359875, 13933125, 23221875, 41799375, 69665625, 208996875]

約数ペア:

[(1, 208996875), (3, 69665625), (5, 41799375), (9, 23221875), (15, 13933125), (25, 8359875), (27, 7740625), (45, 4644375), (75, 2786625), (125, 1671975), (135, 1548125), (225, 928875), (375, 557325), (625, 334395), (675, 309625), (1125, 185775), (1875, 111465), (2477, 84375), (3125, 66879), (3375, 61925), (5625, 37155), (7431, 28125), (9375, 22293), (12385, 16875)]