200979460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{1999}}^1$

素因数の和:2476

約数の個数: 48

約数和(自身を含む): 461664000

約数和(自身を除く): 260684540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 457, 914, 1828, 1999, 2285, 3998, 4570, 5027, 7996, 9140, 9995, 10054, 19990, 20108, 21989, 25135, 39980, 43978, 50270, 87956, 100540, 109945, 219890, 439780, 913543, 1827086, 3654172, 4567715, 9135430, 10048973, 18270860, 20097946, 40195892, 50244865, 100489730, 200979460]

約数ペア:

[(1, 200979460), (2, 100489730), (4, 50244865), (5, 40195892), (10, 20097946), (11, 18270860), (20, 10048973), (22, 9135430), (44, 4567715), (55, 3654172), (110, 1827086), (220, 913543), (457, 439780), (914, 219890), (1828, 109945), (1999, 100540), (2285, 87956), (3998, 50270), (4570, 43978), (5027, 39980), (7996, 25135), (9140, 21989), (9995, 20108), (10054, 19990)]