25780588.000000000

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1609}}^1$

素因数の和:1729

約数の個数: 72

約数和(自身を含む): 377725320

約数和(自身を除く): 224773780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 140, 194, 196, 245, 388, 485, 490, 679, 970, 980, 1358, 1609, 1940, 2716, 3218, 3395, 4753, 6436, 6790, 8045, 9506, 11263, 13580, 16090, 19012, 22526, 23765, 32180, 45052, 47530, 56315, 78841, 95060, 112630, 156073, 157682, 225260, 312146, 315364, 394205, 624292, 780365, 788410, 1092511, 1560730, 1576820, 2185022, 3121460, 4370044, 5462555, 7647577, 10925110, 15295154, 21850220, 30590308, 38237885, 76475770, 152951540]

約数ペア:

[(1, 152951540), (2, 76475770), (4, 38237885), (5, 30590308), (7, 21850220), (10, 15295154), (14, 10925110), (20, 7647577), (28, 5462555), (35, 4370044), (49, 3121460), (70, 2185022), (97, 1576820), (98, 1560730), (140, 1092511), (194, 788410), (196, 780365), (245, 624292), (388, 394205), (485, 315364), (490, 312146), (679, 225260), (970, 157682), (980, 156073), (1358, 112630), (1609, 95060), (1940, 78841), (2716, 56315), (3218, 47530), (3395, 45052), (4753, 32180), (6436, 23765), (6790, 22526), (8045, 19012), (9506, 16090), (11263, 13580)]