20936860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1$

素因数の和:515

約数の個数: 96

約数和(自身を含む): 56125440

約数和(自身を除く): 35188580

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 463, 476, 532, 595, 646, 665, 926, 1190, 1292, 1330, 1615, 1852, 2261, 2315, 2380, 2660, 3230, 3241, 4522, 4630, 6460, 6482, 7871, 8797, 9044, 9260, 11305, 12964, 15742, 16205, 17594, 22610, 31484, 32410, 35188, 39355, 43985, 45220, 55097, 61579, 64820, 78710, 87970, 110194, 123158, 149549, 157420, 175940, 220388, 246316, 275485, 299098, 307895, 550970, 598196, 615790, 747745, 1046843, 1101940, 1231580, 1495490, 2093686, 2990980, 4187372, 5234215, 10468430, 20936860]

約数ペア:

[(1, 20936860), (2, 10468430), (4, 5234215), (5, 4187372), (7, 2990980), (10, 2093686), (14, 1495490), (17, 1231580), (19, 1101940), (20, 1046843), (28, 747745), (34, 615790), (35, 598196), (38, 550970), (68, 307895), (70, 299098), (76, 275485), (85, 246316), (95, 220388), (119, 175940), (133, 157420), (140, 149549), (170, 123158), (190, 110194), (238, 87970), (266, 78710), (323, 64820), (340, 61579), (380, 55097), (463, 45220), (476, 43985), (532, 39355), (595, 35188), (646, 32410), (665, 31484), (926, 22610), (1190, 17594), (1292, 16205), (1330, 15742), (1615, 12964), (1852, 11305), (2261, 9260), (2315, 9044), (2380, 8797), (2660, 7871), (3230, 6482), (3241, 6460), (4522, 4630)]