155703968

素因数分解:

$2^5\times 7^2\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:722

約数の個数: 72

約数和(自身を含む): 359100000

約数和(自身を除く): 203396032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 199, 224, 392, 398, 499, 784, 796, 998, 1393, 1568, 1592, 1996, 2786, 3184, 3493, 3992, 5572, 6368, 6986, 7984, 9751, 11144, 13972, 15968, 19502, 22288, 24451, 27944, 39004, 44576, 48902, 55888, 78008, 97804, 99301, 111776, 156016, 195608, 198602, 312032, 391216, 397204, 695107, 782432, 794408, 1390214, 1588816, 2780428, 3177632, 4865749, 5560856, 9731498, 11121712, 19462996, 22243424, 38925992, 77851984, 155703968]

約数ペア:

[(1, 155703968), (2, 77851984), (4, 38925992), (7, 22243424), (8, 19462996), (14, 11121712), (16, 9731498), (28, 5560856), (32, 4865749), (49, 3177632), (56, 2780428), (98, 1588816), (112, 1390214), (196, 794408), (199, 782432), (224, 695107), (392, 397204), (398, 391216), (499, 312032), (784, 198602), (796, 195608), (998, 156016), (1393, 111776), (1568, 99301), (1592, 97804), (1996, 78008), (2786, 55888), (3184, 48902), (3493, 44576), (3992, 39004), (5572, 27944), (6368, 24451), (6986, 22288), (7984, 19502), (9751, 15968), (11144, 13972)]