31684455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{23}}^2$

素因数の和:90

約数の個数: 72

約数和(自身を含む): 63148176

約数和(自身を除く): 31463721

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 121, 165, 207, 253, 345, 363, 495, 529, 605, 759, 1035, 1089, 1265, 1331, 1587, 1815, 2277, 2645, 2783, 3795, 3993, 4761, 5445, 5819, 6655, 7935, 8349, 11385, 11979, 13915, 17457, 19965, 23805, 25047, 29095, 30613, 41745, 52371, 59895, 64009, 87285, 91839, 125235, 153065, 192027, 261855, 275517, 320045, 459195, 576081, 704099, 960135, 1377585, 2112297, 2880405, 3520495, 6336891, 10561485, 31684455]

約数ペア:

[(1, 31684455), (3, 10561485), (5, 6336891), (9, 3520495), (11, 2880405), (15, 2112297), (23, 1377585), (33, 960135), (45, 704099), (55, 576081), (69, 459195), (99, 320045), (115, 275517), (121, 261855), (165, 192027), (207, 153065), (253, 125235), (345, 91839), (363, 87285), (495, 64009), (529, 59895), (605, 52371), (759, 41745), (1035, 30613), (1089, 29095), (1265, 25047), (1331, 23805), (1587, 19965), (1815, 17457), (2277, 13915), (2645, 11979), (2783, 11385), (3795, 8349), (3993, 7935), (4761, 6655), (5445, 5819)]