20810580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49549}}^1$

素因数の和:49568

約数の個数: 48

約数和(自身を含む): 66595200

約数和(自身を除く): 45784620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49549, 99098, 148647, 198196, 247745, 297294, 346843, 495490, 594588, 693686, 743235, 990980, 1040529, 1387372, 1486470, 1734215, 2081058, 2972940, 3468430, 4162116, 5202645, 6936860, 10405290, 20810580]

約数ペア:

[(1, 20810580), (2, 10405290), (3, 6936860), (4, 5202645), (5, 4162116), (6, 3468430), (7, 2972940), (10, 2081058), (12, 1734215), (14, 1486470), (15, 1387372), (20, 1040529), (21, 990980), (28, 743235), (30, 693686), (35, 594588), (42, 495490), (60, 346843), (70, 297294), (84, 247745), (105, 198196), (140, 148647), (210, 99098), (420, 49549)]