19680650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3253}}^1$

素因数の和:3287

約数の個数: 36

約数和(自身を含む): 40248726

約数和(自身を除く): 20568076

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3253, 6050, 6506, 16265, 32530, 35783, 71566, 81325, 162650, 178915, 357830, 393613, 787226, 894575, 1789150, 1968065, 3936130, 9840325, 19680650]

約数ペア:

[(1, 19680650), (2, 9840325), (5, 3936130), (10, 1968065), (11, 1789150), (22, 894575), (25, 787226), (50, 393613), (55, 357830), (110, 178915), (121, 162650), (242, 81325), (275, 71566), (550, 35783), (605, 32530), (1210, 16265), (3025, 6506), (3253, 6050)]