20460825

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1181}}^1$

素因数の和:1215

約数の個数: 72

約数和(自身を含む): 45729216

約数和(自身を除く): 25268391

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, 1181, 1575, 1925, 2475, 3465, 3543, 5775, 5905, 8267, 10629, 12991, 17325, 17715, 24801, 29525, 38973, 41335, 53145, 64955, 74403, 88575, 90937, 116919, 124005, 194865, 206675, 265725, 272811, 324775, 372015, 454685, 584595, 620025, 818433, 974325, 1364055, 1860075, 2273425, 2922975, 4092165, 6820275, 20460825]

約数ペア:

[(1, 20460825), (3, 6820275), (5, 4092165), (7, 2922975), (9, 2273425), (11, 1860075), (15, 1364055), (21, 974325), (25, 818433), (33, 620025), (35, 584595), (45, 454685), (55, 372015), (63, 324775), (75, 272811), (77, 265725), (99, 206675), (105, 194865), (165, 124005), (175, 116919), (225, 90937), (231, 88575), (275, 74403), (315, 64955), (385, 53145), (495, 41335), (525, 38973), (693, 29525), (825, 24801), (1155, 17715), (1181, 17325), (1575, 12991), (1925, 10629), (2475, 8267), (3465, 5905), (3543, 5775)]