28366520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7793}}^1$

素因数の和:7824

約数の個数: 64

約数和(自身を含む): 78563520

約数和(自身を除く): 50197000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7793, 15586, 31172, 38965, 54551, 62344, 77930, 101309, 109102, 155860, 202618, 218204, 272755, 311720, 405236, 436408, 506545, 545510, 709163, 810472, 1013090, 1091020, 1418326, 2026180, 2182040, 2836652, 3545815, 4052360, 5673304, 7091630, 14183260, 28366520]

約数ペア:

[(1, 28366520), (2, 14183260), (4, 7091630), (5, 5673304), (7, 4052360), (8, 3545815), (10, 2836652), (13, 2182040), (14, 2026180), (20, 1418326), (26, 1091020), (28, 1013090), (35, 810472), (40, 709163), (52, 545510), (56, 506545), (65, 436408), (70, 405236), (91, 311720), (104, 272755), (130, 218204), (140, 202618), (182, 155860), (260, 109102), (280, 101309), (364, 77930), (455, 62344), (520, 54551), (728, 38965), (910, 31172), (1820, 15586), (3640, 7793)]