28455800

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1801}}^1$

素因数の和:1896

約数の個数: 48

約数和(自身を含む): 67034400

約数和(自身を除く): 38578600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1801, 1975, 3160, 3602, 3950, 7204, 7900, 9005, 14408, 15800, 18010, 36020, 45025, 72040, 90050, 142279, 180100, 284558, 360200, 569116, 711395, 1138232, 1422790, 2845580, 3556975, 5691160, 7113950, 14227900, 28455800]

約数ペア:

[(1, 28455800), (2, 14227900), (4, 7113950), (5, 5691160), (8, 3556975), (10, 2845580), (20, 1422790), (25, 1138232), (40, 711395), (50, 569116), (79, 360200), (100, 284558), (158, 180100), (200, 142279), (316, 90050), (395, 72040), (632, 45025), (790, 36020), (1580, 18010), (1801, 15800), (1975, 14408), (3160, 9005), (3602, 7900), (3950, 7204)]