18868400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1097}}^1$

素因数の和:1158

約数の個数: 60

約数和(自身を含む): 46427832

約数和(自身を除く): 27559432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1097, 1720, 2150, 2194, 3440, 4300, 4388, 5485, 8600, 8776, 10970, 17200, 17552, 21940, 27425, 43880, 47171, 54850, 87760, 94342, 109700, 188684, 219400, 235855, 377368, 438800, 471710, 754736, 943420, 1179275, 1886840, 2358550, 3773680, 4717100, 9434200, 18868400]

約数ペア:

[(1, 18868400), (2, 9434200), (4, 4717100), (5, 3773680), (8, 2358550), (10, 1886840), (16, 1179275), (20, 943420), (25, 754736), (40, 471710), (43, 438800), (50, 377368), (80, 235855), (86, 219400), (100, 188684), (172, 109700), (200, 94342), (215, 87760), (344, 54850), (400, 47171), (430, 43880), (688, 27425), (860, 21940), (1075, 17552), (1097, 17200), (1720, 10970), (2150, 8776), (2194, 8600), (3440, 5485), (4300, 4388)]