40278940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 96526080

約数和(自身を除く): 56247140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 53, 65, 74, 79, 106, 130, 148, 158, 185, 212, 260, 265, 316, 370, 395, 481, 530, 689, 740, 790, 962, 1027, 1060, 1378, 1580, 1924, 1961, 2054, 2405, 2756, 2923, 3445, 3922, 4108, 4187, 4810, 5135, 5846, 6890, 7844, 8374, 9620, 9805, 10270, 11692, 13780, 14615, 16748, 19610, 20540, 20935, 25493, 29230, 37999, 39220, 41870, 50986, 54431, 58460, 75998, 83740, 101972, 108862, 127465, 151996, 154919, 189995, 217724, 254930, 272155, 309838, 379990, 509860, 544310, 619676, 759980, 774595, 1088620, 1549190, 2013947, 3098380, 4027894, 8055788, 10069735, 20139470, 40278940]

約数ペア:

[(1, 40278940), (2, 20139470), (4, 10069735), (5, 8055788), (10, 4027894), (13, 3098380), (20, 2013947), (26, 1549190), (37, 1088620), (52, 774595), (53, 759980), (65, 619676), (74, 544310), (79, 509860), (106, 379990), (130, 309838), (148, 272155), (158, 254930), (185, 217724), (212, 189995), (260, 154919), (265, 151996), (316, 127465), (370, 108862), (395, 101972), (481, 83740), (530, 75998), (689, 58460), (740, 54431), (790, 50986), (962, 41870), (1027, 39220), (1060, 37999), (1378, 29230), (1580, 25493), (1924, 20935), (1961, 20540), (2054, 19610), (2405, 16748), (2756, 14615), (2923, 13780), (3445, 11692), (3922, 10270), (4108, 9805), (4187, 9620), (4810, 8374), (5135, 7844), (5846, 6890)]