64144840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 149299200

約数和(自身を除く): 85154360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 158, 212, 265, 316, 383, 395, 424, 530, 632, 766, 790, 1060, 1532, 1580, 1915, 2120, 3064, 3160, 3830, 4187, 7660, 8374, 15320, 16748, 20299, 20935, 30257, 33496, 40598, 41870, 60514, 81196, 83740, 101495, 121028, 151285, 162392, 167480, 202990, 242056, 302570, 405980, 605140, 811960, 1210280, 1603621, 3207242, 6414484, 8018105, 12828968, 16036210, 32072420, 64144840]

約数ペア:

[(1, 64144840), (2, 32072420), (4, 16036210), (5, 12828968), (8, 8018105), (10, 6414484), (20, 3207242), (40, 1603621), (53, 1210280), (79, 811960), (106, 605140), (158, 405980), (212, 302570), (265, 242056), (316, 202990), (383, 167480), (395, 162392), (424, 151285), (530, 121028), (632, 101495), (766, 83740), (790, 81196), (1060, 60514), (1532, 41870), (1580, 40598), (1915, 33496), (2120, 30257), (3064, 20935), (3160, 20299), (3830, 16748), (4187, 15320), (7660, 8374)]