123452980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{51871}}^1$

素因数の和:51904

約数の個数: 48

約数和(自身を含む): 313721856

約数和(自身を除く): 190268876

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 51871, 103742, 207484, 259355, 363097, 518710, 726194, 881807, 1037420, 1452388, 1763614, 1815485, 3527228, 3630970, 4409035, 6172649, 7261940, 8818070, 12345298, 17636140, 24690596, 30863245, 61726490, 123452980]

約数ペア:

[(1, 123452980), (2, 61726490), (4, 30863245), (5, 24690596), (7, 17636140), (10, 12345298), (14, 8818070), (17, 7261940), (20, 6172649), (28, 4409035), (34, 3630970), (35, 3527228), (68, 1815485), (70, 1763614), (85, 1452388), (119, 1037420), (140, 881807), (170, 726194), (238, 518710), (340, 363097), (476, 259355), (595, 207484), (1190, 103742), (2380, 51871)]