20784114

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 80

約数和(自身を含む): 51226560

約数和(自身を除く): 30442446

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 81, 117, 139, 142, 162, 213, 234, 278, 351, 417, 426, 639, 702, 834, 923, 1053, 1251, 1278, 1807, 1846, 1917, 2106, 2502, 2769, 3614, 3753, 3834, 5421, 5538, 5751, 7506, 8307, 9869, 10842, 11259, 11502, 16263, 16614, 19738, 22518, 24921, 29607, 32526, 48789, 49842, 59214, 74763, 88821, 97578, 128297, 146367, 149526, 177642, 256594, 266463, 292734, 384891, 532926, 769782, 799389, 1154673, 1598778, 2309346, 3464019, 6928038, 10392057, 20784114]

約数ペア:

[(1, 20784114), (2, 10392057), (3, 6928038), (6, 3464019), (9, 2309346), (13, 1598778), (18, 1154673), (26, 799389), (27, 769782), (39, 532926), (54, 384891), (71, 292734), (78, 266463), (81, 256594), (117, 177642), (139, 149526), (142, 146367), (162, 128297), (213, 97578), (234, 88821), (278, 74763), (351, 59214), (417, 49842), (426, 48789), (639, 32526), (702, 29607), (834, 24921), (923, 22518), (1053, 19738), (1251, 16614), (1278, 16263), (1807, 11502), (1846, 11259), (1917, 10842), (2106, 9869), (2502, 8307), (2769, 7506), (3614, 5751), (3753, 5538), (3834, 5421)]