180200

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:86

約数の個数: 48

約数和(自身を含む): 451980

約数和(自身を除く): 271780

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 53, 68, 85, 100, 106, 136, 170, 200, 212, 265, 340, 424, 425, 530, 680, 850, 901, 1060, 1325, 1700, 1802, 2120, 2650, 3400, 3604, 4505, 5300, 7208, 9010, 10600, 18020, 22525, 36040, 45050, 90100, 180200]

約数ペア:

[(1, 180200), (2, 90100), (4, 45050), (5, 36040), (8, 22525), (10, 18020), (17, 10600), (20, 9010), (25, 7208), (34, 5300), (40, 4505), (50, 3604), (53, 3400), (68, 2650), (85, 2120), (100, 1802), (106, 1700), (136, 1325), (170, 1060), (200, 901), (212, 850), (265, 680), (340, 530), (424, 425)]