31340120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 87436800

約数和(自身を除く): 56096680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 43, 56, 70, 76, 86, 95, 133, 137, 140, 152, 172, 190, 215, 266, 274, 280, 301, 344, 380, 430, 532, 548, 602, 665, 685, 760, 817, 860, 959, 1064, 1096, 1204, 1330, 1370, 1505, 1634, 1720, 1918, 2408, 2603, 2660, 2740, 3010, 3268, 3836, 4085, 4795, 5206, 5320, 5480, 5719, 5891, 6020, 6536, 7672, 8170, 9590, 10412, 11438, 11782, 12040, 13015, 16340, 18221, 19180, 20824, 22876, 23564, 26030, 28595, 29455, 32680, 36442, 38360, 41237, 45752, 47128, 52060, 57190, 58910, 72884, 82474, 91105, 104120, 111929, 114380, 117820, 145768, 164948, 182210, 206185, 223858, 228760, 235640, 329896, 364420, 412370, 447716, 559645, 728840, 783503, 824740, 895432, 1119290, 1567006, 1649480, 2238580, 3134012, 3917515, 4477160, 6268024, 7835030, 15670060, 31340120]

約数ペア:

[(1, 31340120), (2, 15670060), (4, 7835030), (5, 6268024), (7, 4477160), (8, 3917515), (10, 3134012), (14, 2238580), (19, 1649480), (20, 1567006), (28, 1119290), (35, 895432), (38, 824740), (40, 783503), (43, 728840), (56, 559645), (70, 447716), (76, 412370), (86, 364420), (95, 329896), (133, 235640), (137, 228760), (140, 223858), (152, 206185), (172, 182210), (190, 164948), (215, 145768), (266, 117820), (274, 114380), (280, 111929), (301, 104120), (344, 91105), (380, 82474), (430, 72884), (532, 58910), (548, 57190), (602, 52060), (665, 47128), (685, 45752), (760, 41237), (817, 38360), (860, 36442), (959, 32680), (1064, 29455), (1096, 28595), (1204, 26030), (1330, 23564), (1370, 22876), (1505, 20824), (1634, 19180), (1720, 18221), (1918, 16340), (2408, 13015), (2603, 12040), (2660, 11782), (2740, 11438), (3010, 10412), (3268, 9590), (3836, 8170), (4085, 7672), (4795, 6536), (5206, 6020), (5320, 5891), (5480, 5719)]