18555400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{257}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 45708570

約数和(自身を除く): 27153170

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 257, 361, 380, 475, 514, 722, 760, 950, 1028, 1285, 1444, 1805, 1900, 2056, 2570, 2888, 3610, 3800, 4883, 5140, 6425, 7220, 9025, 9766, 10280, 12850, 14440, 18050, 19532, 24415, 25700, 36100, 39064, 48830, 51400, 72200, 92777, 97660, 122075, 185554, 195320, 244150, 371108, 463885, 488300, 742216, 927770, 976600, 1855540, 2319425, 3711080, 4638850, 9277700, 18555400]

約数ペア:

[(1, 18555400), (2, 9277700), (4, 4638850), (5, 3711080), (8, 2319425), (10, 1855540), (19, 976600), (20, 927770), (25, 742216), (38, 488300), (40, 463885), (50, 371108), (76, 244150), (95, 195320), (100, 185554), (152, 122075), (190, 97660), (200, 92777), (257, 72200), (361, 51400), (380, 48830), (475, 39064), (514, 36100), (722, 25700), (760, 24415), (950, 19532), (1028, 18050), (1285, 14440), (1444, 12850), (1805, 10280), (1900, 9766), (2056, 9025), (2570, 7220), (2888, 6425), (3610, 5140), (3800, 4883)]