40642168

素因数分解:

$2^3\times 7^2\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 89262000

約数和(自身を除く): 48619832

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 199, 392, 398, 521, 796, 1042, 1393, 1592, 2084, 2786, 3647, 4168, 5572, 7294, 9751, 11144, 14588, 19502, 25529, 29176, 39004, 51058, 78008, 102116, 103679, 204232, 207358, 414716, 725753, 829432, 1451506, 2903012, 5080271, 5806024, 10160542, 20321084, 40642168]

約数ペア:

[(1, 40642168), (2, 20321084), (4, 10160542), (7, 5806024), (8, 5080271), (14, 2903012), (28, 1451506), (49, 829432), (56, 725753), (98, 414716), (196, 207358), (199, 204232), (392, 103679), (398, 102116), (521, 78008), (796, 51058), (1042, 39004), (1393, 29176), (1592, 25529), (2084, 19502), (2786, 14588), (3647, 11144), (4168, 9751), (5572, 7294)]