27981520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1723}}^1$

素因数の和:1772

約数の個数: 80

約数和(自身を含む): 76959360

約数和(自身を除く): 48977840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 1723, 2030, 2320, 3248, 3446, 4060, 6892, 8120, 8615, 12061, 13784, 16240, 17230, 24122, 27568, 34460, 48244, 49967, 60305, 68920, 96488, 99934, 120610, 137840, 192976, 199868, 241220, 249835, 349769, 399736, 482440, 499670, 699538, 799472, 964880, 999340, 1399076, 1748845, 1998680, 2798152, 3497690, 3997360, 5596304, 6995380, 13990760, 27981520]

約数ペア:

[(1, 27981520), (2, 13990760), (4, 6995380), (5, 5596304), (7, 3997360), (8, 3497690), (10, 2798152), (14, 1998680), (16, 1748845), (20, 1399076), (28, 999340), (29, 964880), (35, 799472), (40, 699538), (56, 499670), (58, 482440), (70, 399736), (80, 349769), (112, 249835), (116, 241220), (140, 199868), (145, 192976), (203, 137840), (232, 120610), (280, 99934), (290, 96488), (406, 68920), (464, 60305), (560, 49967), (580, 48244), (812, 34460), (1015, 27568), (1160, 24122), (1624, 17230), (1723, 16240), (2030, 13784), (2320, 12061), (3248, 8615), (3446, 8120), (4060, 6892)]