1555268420

素因数分解:

$2^2\times 5^1\times {\mathrm{4451}}^1\times {\mathrm{17471}}^1$

素因数の和:21931

約数の個数: 24

約数和(自身を含む): 3266984448

約数和(自身を除く): 1711716028

約数列:

[1, 2, 4, 5, 10, 20, 4451, 8902, 17471, 17804, 22255, 34942, 44510, 69884, 87355, 89020, 174710, 349420, 77763421, 155526842, 311053684, 388817105, 777634210, 1555268420]

約数ペア:

[(1, 1555268420), (2, 777634210), (4, 388817105), (5, 311053684), (10, 155526842), (20, 77763421), (4451, 349420), (8902, 174710), (17471, 89020), (17804, 87355), (22255, 69884), (34942, 44510)]