20335560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:627

約数の個数: 128

約数和(自身を含む): 71470080

約数和(自身を除く): 51134520

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, 563, 602, 645, 840, 860, 903, 1032, 1126, 1204, 1290, 1505, 1689, 1720, 1806, 2252, 2408, 2580, 2815, 3010, 3378, 3612, 3941, 4504, 4515, 5160, 5630, 6020, 6756, 7224, 7882, 8445, 9030, 11260, 11823, 12040, 13512, 15764, 16890, 18060, 19705, 22520, 23646, 24209, 31528, 33780, 36120, 39410, 47292, 48418, 59115, 67560, 72627, 78820, 94584, 96836, 118230, 121045, 145254, 157640, 169463, 193672, 236460, 242090, 290508, 338926, 363135, 472920, 484180, 508389, 581016, 677852, 726270, 847315, 968360, 1016778, 1355704, 1452540, 1694630, 2033556, 2541945, 2905080, 3389260, 4067112, 5083890, 6778520, 10167780, 20335560]

約数ペア:

[(1, 20335560), (2, 10167780), (3, 6778520), (4, 5083890), (5, 4067112), (6, 3389260), (7, 2905080), (8, 2541945), (10, 2033556), (12, 1694630), (14, 1452540), (15, 1355704), (20, 1016778), (21, 968360), (24, 847315), (28, 726270), (30, 677852), (35, 581016), (40, 508389), (42, 484180), (43, 472920), (56, 363135), (60, 338926), (70, 290508), (84, 242090), (86, 236460), (105, 193672), (120, 169463), (129, 157640), (140, 145254), (168, 121045), (172, 118230), (210, 96836), (215, 94584), (258, 78820), (280, 72627), (301, 67560), (344, 59115), (420, 48418), (430, 47292), (516, 39410), (563, 36120), (602, 33780), (645, 31528), (840, 24209), (860, 23646), (903, 22520), (1032, 19705), (1126, 18060), (1204, 16890), (1290, 15764), (1505, 13512), (1689, 12040), (1720, 11823), (1806, 11260), (2252, 9030), (2408, 8445), (2580, 7882), (2815, 7224), (3010, 6756), (3378, 6020), (3612, 5630), (3941, 5160), (4504, 4515)]