20482275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 38855152

約数和(自身を除く): 18372877

約数列:

[1, 3, 5, 11, 15, 25, 33, 37, 55, 61, 75, 111, 121, 165, 183, 185, 275, 305, 363, 407, 555, 605, 671, 825, 915, 925, 1221, 1525, 1815, 2013, 2035, 2257, 2775, 3025, 3355, 4477, 4575, 6105, 6771, 7381, 9075, 10065, 10175, 11285, 13431, 16775, 22143, 22385, 24827, 30525, 33855, 36905, 50325, 56425, 67155, 74481, 110715, 111925, 124135, 169275, 184525, 273097, 335775, 372405, 553575, 620675, 819291, 1365485, 1862025, 4096455, 6827425, 20482275]

約数ペア:

[(1, 20482275), (3, 6827425), (5, 4096455), (11, 1862025), (15, 1365485), (25, 819291), (33, 620675), (37, 553575), (55, 372405), (61, 335775), (75, 273097), (111, 184525), (121, 169275), (165, 124135), (183, 111925), (185, 110715), (275, 74481), (305, 67155), (363, 56425), (407, 50325), (555, 36905), (605, 33855), (671, 30525), (825, 24827), (915, 22385), (925, 22143), (1221, 16775), (1525, 13431), (1815, 11285), (2013, 10175), (2035, 10065), (2257, 9075), (2775, 7381), (3025, 6771), (3355, 6105), (4477, 4575)]