78505720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1949}}^1$

素因数の和:2032

約数の個数: 64

約数和(自身を含む): 189540000

約数和(自身を除く): 111034280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 424, 530, 760, 1007, 1060, 1949, 2014, 2120, 3898, 4028, 5035, 7796, 8056, 9745, 10070, 15592, 19490, 20140, 37031, 38980, 40280, 74062, 77960, 103297, 148124, 185155, 206594, 296248, 370310, 413188, 516485, 740620, 826376, 1032970, 1481240, 1962643, 2065940, 3925286, 4131880, 7850572, 9813215, 15701144, 19626430, 39252860, 78505720]

約数ペア:

[(1, 78505720), (2, 39252860), (4, 19626430), (5, 15701144), (8, 9813215), (10, 7850572), (19, 4131880), (20, 3925286), (38, 2065940), (40, 1962643), (53, 1481240), (76, 1032970), (95, 826376), (106, 740620), (152, 516485), (190, 413188), (212, 370310), (265, 296248), (380, 206594), (424, 185155), (530, 148124), (760, 103297), (1007, 77960), (1060, 74062), (1949, 40280), (2014, 38980), (2120, 37031), (3898, 20140), (4028, 19490), (5035, 15592), (7796, 10070), (8056, 9745)]