2165625

素因数分解:

$3^2\times 5^5\times 7^1\times {\mathrm{11}}^1$

素因数の和:49

約数の個数: 72

約数和(自身を含む): 4874688

約数和(自身を除く): 2709063

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 55, 63, 75, 77, 99, 105, 125, 165, 175, 225, 231, 275, 315, 375, 385, 495, 525, 625, 693, 825, 875, 1125, 1155, 1375, 1575, 1875, 1925, 2475, 2625, 3125, 3465, 4125, 4375, 5625, 5775, 6875, 7875, 9375, 9625, 12375, 13125, 17325, 20625, 21875, 28125, 28875, 34375, 39375, 48125, 61875, 65625, 86625, 103125, 144375, 196875, 240625, 309375, 433125, 721875, 2165625]

約数ペア:

[(1, 2165625), (3, 721875), (5, 433125), (7, 309375), (9, 240625), (11, 196875), (15, 144375), (21, 103125), (25, 86625), (33, 65625), (35, 61875), (45, 48125), (55, 39375), (63, 34375), (75, 28875), (77, 28125), (99, 21875), (105, 20625), (125, 17325), (165, 13125), (175, 12375), (225, 9625), (231, 9375), (275, 7875), (315, 6875), (375, 5775), (385, 5625), (495, 4375), (525, 4125), (625, 3465), (693, 3125), (825, 2625), (875, 2475), (1125, 1925), (1155, 1875), (1375, 1575)]