42640400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{881}}^1$

素因数の和:921

約数の個数: 90

約数和(自身を含む): 112731066

約数和(自身を除く): 70090666

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, 440, 484, 550, 605, 880, 881, 968, 1100, 1210, 1762, 1936, 2200, 2420, 3025, 3524, 4400, 4405, 4840, 6050, 7048, 8810, 9680, 9691, 12100, 14096, 17620, 19382, 22025, 24200, 35240, 38764, 44050, 48400, 48455, 70480, 77528, 88100, 96910, 106601, 155056, 176200, 193820, 213202, 242275, 352400, 387640, 426404, 484550, 533005, 775280, 852808, 969100, 1066010, 1705616, 1938200, 2132020, 2665025, 3876400, 4264040, 5330050, 8528080, 10660100, 21320200, 42640400]

約数ペア:

[(1, 42640400), (2, 21320200), (4, 10660100), (5, 8528080), (8, 5330050), (10, 4264040), (11, 3876400), (16, 2665025), (20, 2132020), (22, 1938200), (25, 1705616), (40, 1066010), (44, 969100), (50, 852808), (55, 775280), (80, 533005), (88, 484550), (100, 426404), (110, 387640), (121, 352400), (176, 242275), (200, 213202), (220, 193820), (242, 176200), (275, 155056), (400, 106601), (440, 96910), (484, 88100), (550, 77528), (605, 70480), (880, 48455), (881, 48400), (968, 44050), (1100, 38764), (1210, 35240), (1762, 24200), (1936, 22025), (2200, 19382), (2420, 17620), (3025, 14096), (3524, 12100), (4400, 9691), (4405, 9680), (4840, 8810), (6050, 7048)]