209911840

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14741}}^1$

素因数の和:14845

約数の個数: 48

約数和(自身を含む): 501522840

約数和(自身を除く): 291611000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 7120, 14240, 14741, 29482, 58964, 73705, 117928, 147410, 235856, 294820, 471712, 589640, 1179280, 1311949, 2358560, 2623898, 5247796, 6559745, 10495592, 13119490, 20991184, 26238980, 41982368, 52477960, 104955920, 209911840]

約数ペア:

[(1, 209911840), (2, 104955920), (4, 52477960), (5, 41982368), (8, 26238980), (10, 20991184), (16, 13119490), (20, 10495592), (32, 6559745), (40, 5247796), (80, 2623898), (89, 2358560), (160, 1311949), (178, 1179280), (356, 589640), (445, 471712), (712, 294820), (890, 235856), (1424, 147410), (1780, 117928), (2848, 73705), (3560, 58964), (7120, 29482), (14240, 14741)]