20487012

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 59872512

約数和(自身を除く): 39385500

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 73, 78, 84, 91, 146, 156, 182, 219, 257, 273, 292, 364, 438, 511, 514, 546, 771, 876, 949, 1022, 1028, 1092, 1533, 1542, 1799, 1898, 2044, 2847, 3066, 3084, 3341, 3598, 3796, 5397, 5694, 6132, 6643, 6682, 7196, 10023, 10794, 11388, 13286, 13364, 18761, 19929, 20046, 21588, 23387, 26572, 37522, 39858, 40092, 46774, 56283, 70161, 75044, 79716, 93548, 112566, 131327, 140322, 225132, 243893, 262654, 280644, 393981, 487786, 525308, 731679, 787962, 975572, 1463358, 1575924, 1707251, 2926716, 3414502, 5121753, 6829004, 10243506, 20487012]

約数ペア:

[(1, 20487012), (2, 10243506), (3, 6829004), (4, 5121753), (6, 3414502), (7, 2926716), (12, 1707251), (13, 1575924), (14, 1463358), (21, 975572), (26, 787962), (28, 731679), (39, 525308), (42, 487786), (52, 393981), (73, 280644), (78, 262654), (84, 243893), (91, 225132), (146, 140322), (156, 131327), (182, 112566), (219, 93548), (257, 79716), (273, 75044), (292, 70161), (364, 56283), (438, 46774), (511, 40092), (514, 39858), (546, 37522), (771, 26572), (876, 23387), (949, 21588), (1022, 20046), (1028, 19929), (1092, 18761), (1533, 13364), (1542, 13286), (1799, 11388), (1898, 10794), (2044, 10023), (2847, 7196), (3066, 6682), (3084, 6643), (3341, 6132), (3598, 5694), (3796, 5397)]