20807325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1201}}^1$

素因数の和:1235

約数の個数: 72

約数和(自身を含む): 46502976

約数和(自身を除く): 25695651

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 55, 63, 75, 77, 99, 105, 165, 175, 225, 231, 275, 315, 385, 495, 525, 693, 825, 1155, 1201, 1575, 1925, 2475, 3465, 3603, 5775, 6005, 8407, 10809, 13211, 17325, 18015, 25221, 30025, 39633, 42035, 54045, 66055, 75663, 90075, 92477, 118899, 126105, 198165, 210175, 270225, 277431, 330275, 378315, 462385, 594495, 630525, 832293, 990825, 1387155, 1891575, 2311925, 2972475, 4161465, 6935775, 20807325]

約数ペア:

[(1, 20807325), (3, 6935775), (5, 4161465), (7, 2972475), (9, 2311925), (11, 1891575), (15, 1387155), (21, 990825), (25, 832293), (33, 630525), (35, 594495), (45, 462385), (55, 378315), (63, 330275), (75, 277431), (77, 270225), (99, 210175), (105, 198165), (165, 126105), (175, 118899), (225, 92477), (231, 90075), (275, 75663), (315, 66055), (385, 54045), (495, 42035), (525, 39633), (693, 30025), (825, 25221), (1155, 18015), (1201, 17325), (1575, 13211), (1925, 10809), (2475, 8407), (3465, 6005), (3603, 5775)]