20809950

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{19819}}^1$

素因数の和:19841

約数の個数: 48

約数和(自身を含む): 58984320

約数和(自身を除く): 38174370

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 150, 175, 210, 350, 525, 1050, 19819, 39638, 59457, 99095, 118914, 138733, 198190, 277466, 297285, 416199, 495475, 594570, 693665, 832398, 990950, 1387330, 1486425, 2080995, 2972850, 3468325, 4161990, 6936650, 10404975, 20809950]

約数ペア:

[(1, 20809950), (2, 10404975), (3, 6936650), (5, 4161990), (6, 3468325), (7, 2972850), (10, 2080995), (14, 1486425), (15, 1387330), (21, 990950), (25, 832398), (30, 693665), (35, 594570), (42, 495475), (50, 416199), (70, 297285), (75, 277466), (105, 198190), (150, 138733), (175, 118914), (210, 99095), (350, 59457), (525, 39638), (1050, 19819)]