20696940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10453}}^1$

素因数の和:10479

約数の個数: 72

約数和(自身を含む): 68494608

約数和(自身を除く): 47797668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10453, 20906, 31359, 41812, 52265, 62718, 94077, 104530, 114983, 125436, 156795, 188154, 209060, 229966, 313590, 344949, 376308, 459932, 470385, 574915, 627180, 689898, 940770, 1034847, 1149830, 1379796, 1724745, 1881540, 2069694, 2299660, 3449490, 4139388, 5174235, 6898980, 10348470, 20696940]

約数ペア:

[(1, 20696940), (2, 10348470), (3, 6898980), (4, 5174235), (5, 4139388), (6, 3449490), (9, 2299660), (10, 2069694), (11, 1881540), (12, 1724745), (15, 1379796), (18, 1149830), (20, 1034847), (22, 940770), (30, 689898), (33, 627180), (36, 574915), (44, 470385), (45, 459932), (55, 376308), (60, 344949), (66, 313590), (90, 229966), (99, 209060), (110, 188154), (132, 156795), (165, 125436), (180, 114983), (198, 104530), (220, 94077), (330, 62718), (396, 52265), (495, 41812), (660, 31359), (990, 20906), (1980, 10453)]