19408400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{401}}^1$

素因数の和:441

約数の個数: 90

約数和(自身を含む): 51380826

約数和(自身を除く): 31972426

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 121, 176, 200, 220, 242, 275, 400, 401, 440, 484, 550, 605, 802, 880, 968, 1100, 1210, 1604, 1936, 2005, 2200, 2420, 3025, 3208, 4010, 4400, 4411, 4840, 6050, 6416, 8020, 8822, 9680, 10025, 12100, 16040, 17644, 20050, 22055, 24200, 32080, 35288, 40100, 44110, 48400, 48521, 70576, 80200, 88220, 97042, 110275, 160400, 176440, 194084, 220550, 242605, 352880, 388168, 441100, 485210, 776336, 882200, 970420, 1213025, 1764400, 1940840, 2426050, 3881680, 4852100, 9704200, 19408400]

約数ペア:

[(1, 19408400), (2, 9704200), (4, 4852100), (5, 3881680), (8, 2426050), (10, 1940840), (11, 1764400), (16, 1213025), (20, 970420), (22, 882200), (25, 776336), (40, 485210), (44, 441100), (50, 388168), (55, 352880), (80, 242605), (88, 220550), (100, 194084), (110, 176440), (121, 160400), (176, 110275), (200, 97042), (220, 88220), (242, 80200), (275, 70576), (400, 48521), (401, 48400), (440, 44110), (484, 40100), (550, 35288), (605, 32080), (802, 24200), (880, 22055), (968, 20050), (1100, 17644), (1210, 16040), (1604, 12100), (1936, 10025), (2005, 9680), (2200, 8822), (2420, 8020), (3025, 6416), (3208, 6050), (4010, 4840), (4400, 4411)]