78128456

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{757}}^1$

素因数の和:886

約数の個数: 64

約数和(自身を含む): 178281600

約数和(自身を除く): 100153144

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 97, 133, 152, 194, 266, 388, 532, 679, 757, 776, 1064, 1358, 1514, 1843, 2716, 3028, 3686, 5299, 5432, 6056, 7372, 10598, 12901, 14383, 14744, 21196, 25802, 28766, 42392, 51604, 57532, 73429, 100681, 103208, 115064, 146858, 201362, 293716, 402724, 514003, 587432, 805448, 1028006, 1395151, 2056012, 2790302, 4112024, 5580604, 9766057, 11161208, 19532114, 39064228, 78128456]

約数ペア:

[(1, 78128456), (2, 39064228), (4, 19532114), (7, 11161208), (8, 9766057), (14, 5580604), (19, 4112024), (28, 2790302), (38, 2056012), (56, 1395151), (76, 1028006), (97, 805448), (133, 587432), (152, 514003), (194, 402724), (266, 293716), (388, 201362), (532, 146858), (679, 115064), (757, 103208), (776, 100681), (1064, 73429), (1358, 57532), (1514, 51604), (1843, 42392), (2716, 28766), (3028, 25802), (3686, 21196), (5299, 14744), (5432, 14383), (6056, 12901), (7372, 10598)]