204830800

素因数分解:

$2^4\times 5^2\times {\mathrm{401}}^1\times {\mathrm{1277}}^1$

素因数の和:1696

約数の個数: 60

約数和(自身を含む): 493719516

約数和(自身を除く): 288888716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 401, 802, 1277, 1604, 2005, 2554, 3208, 4010, 5108, 6385, 6416, 8020, 10025, 10216, 12770, 16040, 20050, 20432, 25540, 31925, 32080, 40100, 51080, 63850, 80200, 102160, 127700, 160400, 255400, 510800, 512077, 1024154, 2048308, 2560385, 4096616, 5120770, 8193232, 10241540, 12801925, 20483080, 25603850, 40966160, 51207700, 102415400, 204830800]

約数ペア:

[(1, 204830800), (2, 102415400), (4, 51207700), (5, 40966160), (8, 25603850), (10, 20483080), (16, 12801925), (20, 10241540), (25, 8193232), (40, 5120770), (50, 4096616), (80, 2560385), (100, 2048308), (200, 1024154), (400, 512077), (401, 510800), (802, 255400), (1277, 160400), (1604, 127700), (2005, 102160), (2554, 80200), (3208, 63850), (4010, 51080), (5108, 40100), (6385, 32080), (6416, 31925), (8020, 25540), (10025, 20432), (10216, 20050), (12770, 16040)]