19805292

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 54578160

約数和(自身を除く): 34772868

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 101, 117, 156, 202, 234, 303, 404, 419, 468, 606, 838, 909, 1212, 1257, 1313, 1676, 1818, 2514, 2626, 3636, 3771, 3939, 5028, 5252, 5447, 7542, 7878, 10894, 11817, 15084, 15756, 16341, 21788, 23634, 32682, 42319, 47268, 49023, 65364, 84638, 98046, 126957, 169276, 196092, 253914, 380871, 507828, 550147, 761742, 1100294, 1523484, 1650441, 2200588, 3300882, 4951323, 6601764, 9902646, 19805292]

約数ペア:

[(1, 19805292), (2, 9902646), (3, 6601764), (4, 4951323), (6, 3300882), (9, 2200588), (12, 1650441), (13, 1523484), (18, 1100294), (26, 761742), (36, 550147), (39, 507828), (52, 380871), (78, 253914), (101, 196092), (117, 169276), (156, 126957), (202, 98046), (234, 84638), (303, 65364), (404, 49023), (419, 47268), (468, 42319), (606, 32682), (838, 23634), (909, 21788), (1212, 16341), (1257, 15756), (1313, 15084), (1676, 11817), (1818, 10894), (2514, 7878), (2626, 7542), (3636, 5447), (3771, 5252), (3939, 5028)]