20552280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:633

約数の個数: 128

約数和(自身を含む): 72230400

約数和(自身を除く): 51678120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 569, 602, 645, 840, 860, 903, 1032, 1138, 1204, 1290, 1505, 1707, 1720, 1806, 2276, 2408, 2580, 2845, 3010, 3414, 3612, 3983, 4515, 4552, 5160, 5690, 6020, 6828, 7224, 7966, 8535, 9030, 11380, 11949, 12040, 13656, 15932, 17070, 18060, 19915, 22760, 23898, 24467, 31864, 34140, 36120, 39830, 47796, 48934, 59745, 68280, 73401, 79660, 95592, 97868, 119490, 122335, 146802, 159320, 171269, 195736, 238980, 244670, 293604, 342538, 367005, 477960, 489340, 513807, 587208, 685076, 734010, 856345, 978680, 1027614, 1370152, 1468020, 1712690, 2055228, 2569035, 2936040, 3425380, 4110456, 5138070, 6850760, 10276140, 20552280]

約数ペア:

[(1, 20552280), (2, 10276140), (3, 6850760), (4, 5138070), (5, 4110456), (6, 3425380), (7, 2936040), (8, 2569035), (10, 2055228), (12, 1712690), (14, 1468020), (15, 1370152), (20, 1027614), (21, 978680), (24, 856345), (28, 734010), (30, 685076), (35, 587208), (40, 513807), (42, 489340), (43, 477960), (56, 367005), (60, 342538), (70, 293604), (84, 244670), (86, 238980), (105, 195736), (120, 171269), (129, 159320), (140, 146802), (168, 122335), (172, 119490), (210, 97868), (215, 95592), (258, 79660), (280, 73401), (301, 68280), (344, 59745), (420, 48934), (430, 47796), (516, 39830), (569, 36120), (602, 34140), (645, 31864), (840, 24467), (860, 23898), (903, 22760), (1032, 19915), (1138, 18060), (1204, 17070), (1290, 15932), (1505, 13656), (1707, 12040), (1720, 11949), (1806, 11380), (2276, 9030), (2408, 8535), (2580, 7966), (2845, 7224), (3010, 6828), (3414, 6020), (3612, 5690), (3983, 5160), (4515, 4552)]