18987900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{167}}^1\times {\mathrm{379}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 55413120

約数和(自身を除く): 36425220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 167, 300, 334, 379, 501, 668, 758, 835, 1002, 1137, 1516, 1670, 1895, 2004, 2274, 2505, 3340, 3790, 4175, 4548, 5010, 5685, 7580, 8350, 9475, 10020, 11370, 12525, 16700, 18950, 22740, 25050, 28425, 37900, 50100, 56850, 63293, 113700, 126586, 189879, 253172, 316465, 379758, 632930, 759516, 949395, 1265860, 1582325, 1898790, 3164650, 3797580, 4746975, 6329300, 9493950, 18987900]

約数ペア:

[(1, 18987900), (2, 9493950), (3, 6329300), (4, 4746975), (5, 3797580), (6, 3164650), (10, 1898790), (12, 1582325), (15, 1265860), (20, 949395), (25, 759516), (30, 632930), (50, 379758), (60, 316465), (75, 253172), (100, 189879), (150, 126586), (167, 113700), (300, 63293), (334, 56850), (379, 50100), (501, 37900), (668, 28425), (758, 25050), (835, 22740), (1002, 18950), (1137, 16700), (1516, 12525), (1670, 11370), (1895, 10020), (2004, 9475), (2274, 8350), (2505, 7580), (3340, 5685), (3790, 5010), (4175, 4548)]