31955880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:631

約数の個数: 128

約数和(自身を含む): 107205120

約数和(自身を除く): 75249240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 43, 44, 55, 60, 66, 86, 88, 110, 120, 129, 132, 165, 172, 215, 220, 258, 264, 330, 344, 430, 440, 473, 516, 563, 645, 660, 860, 946, 1032, 1126, 1290, 1320, 1419, 1689, 1720, 1892, 2252, 2365, 2580, 2815, 2838, 3378, 3784, 4504, 4730, 5160, 5630, 5676, 6193, 6756, 7095, 8445, 9460, 11260, 11352, 12386, 13512, 14190, 16890, 18579, 18920, 22520, 24209, 24772, 28380, 30965, 33780, 37158, 48418, 49544, 56760, 61930, 67560, 72627, 74316, 92895, 96836, 121045, 123860, 145254, 148632, 185790, 193672, 242090, 247720, 266299, 290508, 363135, 371580, 484180, 532598, 581016, 726270, 743160, 798897, 968360, 1065196, 1331495, 1452540, 1597794, 2130392, 2662990, 2905080, 3195588, 3994485, 5325980, 6391176, 7988970, 10651960, 15977940, 31955880]

約数ペア:

[(1, 31955880), (2, 15977940), (3, 10651960), (4, 7988970), (5, 6391176), (6, 5325980), (8, 3994485), (10, 3195588), (11, 2905080), (12, 2662990), (15, 2130392), (20, 1597794), (22, 1452540), (24, 1331495), (30, 1065196), (33, 968360), (40, 798897), (43, 743160), (44, 726270), (55, 581016), (60, 532598), (66, 484180), (86, 371580), (88, 363135), (110, 290508), (120, 266299), (129, 247720), (132, 242090), (165, 193672), (172, 185790), (215, 148632), (220, 145254), (258, 123860), (264, 121045), (330, 96836), (344, 92895), (430, 74316), (440, 72627), (473, 67560), (516, 61930), (563, 56760), (645, 49544), (660, 48418), (860, 37158), (946, 33780), (1032, 30965), (1126, 28380), (1290, 24772), (1320, 24209), (1419, 22520), (1689, 18920), (1720, 18579), (1892, 16890), (2252, 14190), (2365, 13512), (2580, 12386), (2815, 11352), (2838, 11260), (3378, 9460), (3784, 8445), (4504, 7095), (4730, 6756), (5160, 6193), (5630, 5676)]