20786970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:415

約数の個数: 64

約数和(自身を含む): 52246656

約数和(自身を除く): 31459686

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 61, 74, 111, 122, 183, 185, 222, 305, 307, 366, 370, 555, 610, 614, 915, 921, 1110, 1535, 1830, 1842, 2257, 3070, 4514, 4605, 6771, 9210, 11285, 11359, 13542, 18727, 22570, 22718, 33855, 34077, 37454, 56181, 56795, 67710, 68154, 93635, 112362, 113590, 170385, 187270, 280905, 340770, 561810, 692899, 1385798, 2078697, 3464495, 4157394, 6928990, 10393485, 20786970]

約数ペア:

[(1, 20786970), (2, 10393485), (3, 6928990), (5, 4157394), (6, 3464495), (10, 2078697), (15, 1385798), (30, 692899), (37, 561810), (61, 340770), (74, 280905), (111, 187270), (122, 170385), (183, 113590), (185, 112362), (222, 93635), (305, 68154), (307, 67710), (366, 56795), (370, 56181), (555, 37454), (610, 34077), (614, 33855), (915, 22718), (921, 22570), (1110, 18727), (1535, 13542), (1830, 11359), (1842, 11285), (2257, 9210), (3070, 6771), (4514, 4605)]