18836420

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{4931}}^1$

素因数の和:5131

約数の個数: 24

約数和(自身を含む): 39771648

約数和(自身を除く): 20935228

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 4931, 9862, 19724, 24655, 49310, 98620, 941821, 1883642, 3767284, 4709105, 9418210, 18836420]

約数ペア:

[(1, 18836420), (2, 9418210), (4, 4709105), (5, 3767284), (10, 1883642), (20, 941821), (191, 98620), (382, 49310), (764, 24655), (955, 19724), (1910, 9862), (3820, 4931)]