721875

素因数分解:

$3^1\times 5^5\times 7^1\times {\mathrm{11}}^1$

素因数の和:46

約数の個数: 48

約数和(自身を含む): 1499904

約数和(自身を除く): 778029

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 125, 165, 175, 231, 275, 375, 385, 525, 625, 825, 875, 1155, 1375, 1875, 1925, 2625, 3125, 4125, 4375, 5775, 6875, 9375, 9625, 13125, 20625, 21875, 28875, 34375, 48125, 65625, 103125, 144375, 240625, 721875]

約数ペア:

[(1, 721875), (3, 240625), (5, 144375), (7, 103125), (11, 65625), (15, 48125), (21, 34375), (25, 28875), (33, 21875), (35, 20625), (55, 13125), (75, 9625), (77, 9375), (105, 6875), (125, 5775), (165, 4375), (175, 4125), (231, 3125), (275, 2625), (375, 1925), (385, 1875), (525, 1375), (625, 1155), (825, 875)]