31039120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1352

約数の個数: 80

約数和(自身を含む): 84458880

約数和(自身を除く): 53419760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1289, 1505, 1720, 2408, 2578, 3010, 3440, 4816, 5156, 6020, 6445, 9023, 10312, 12040, 12890, 18046, 20624, 24080, 25780, 36092, 45115, 51560, 55427, 72184, 90230, 103120, 110854, 144368, 180460, 221708, 277135, 360920, 387989, 443416, 554270, 721840, 775978, 886832, 1108540, 1551956, 1939945, 2217080, 3103912, 3879890, 4434160, 6207824, 7759780, 15519560, 31039120]

約数ペア:

[(1, 31039120), (2, 15519560), (4, 7759780), (5, 6207824), (7, 4434160), (8, 3879890), (10, 3103912), (14, 2217080), (16, 1939945), (20, 1551956), (28, 1108540), (35, 886832), (40, 775978), (43, 721840), (56, 554270), (70, 443416), (80, 387989), (86, 360920), (112, 277135), (140, 221708), (172, 180460), (215, 144368), (280, 110854), (301, 103120), (344, 90230), (430, 72184), (560, 55427), (602, 51560), (688, 45115), (860, 36092), (1204, 25780), (1289, 24080), (1505, 20624), (1720, 18046), (2408, 12890), (2578, 12040), (3010, 10312), (3440, 9023), (4816, 6445), (5156, 6020)]