25388920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 60588000

約数和(自身を除く): 35199080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 290, 344, 430, 509, 580, 860, 1018, 1160, 1247, 1720, 2036, 2494, 2545, 4072, 4988, 5090, 6235, 9976, 10180, 12470, 14761, 20360, 21887, 24940, 29522, 43774, 49880, 59044, 73805, 87548, 109435, 118088, 147610, 175096, 218870, 295220, 437740, 590440, 634723, 875480, 1269446, 2538892, 3173615, 5077784, 6347230, 12694460, 25388920]

約数ペア:

[(1, 25388920), (2, 12694460), (4, 6347230), (5, 5077784), (8, 3173615), (10, 2538892), (20, 1269446), (29, 875480), (40, 634723), (43, 590440), (58, 437740), (86, 295220), (116, 218870), (145, 175096), (172, 147610), (215, 118088), (232, 109435), (290, 87548), (344, 73805), (430, 59044), (509, 49880), (580, 43774), (860, 29522), (1018, 24940), (1160, 21887), (1247, 20360), (1720, 14761), (2036, 12470), (2494, 10180), (2545, 9976), (4072, 6235), (4988, 5090)]