209968100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{34421}}^1$

素因数の和:34496

約数の個数: 36

約数和(自身を含む): 463113588

約数和(自身を除く): 253145488

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 34421, 68842, 137684, 172105, 344210, 688420, 860525, 1721050, 2099681, 3442100, 4199362, 8398724, 10498405, 20996810, 41993620, 52492025, 104984050, 209968100]

約数ペア:

[(1, 209968100), (2, 104984050), (4, 52492025), (5, 41993620), (10, 20996810), (20, 10498405), (25, 8398724), (50, 4199362), (61, 3442100), (100, 2099681), (122, 1721050), (244, 860525), (305, 688420), (610, 344210), (1220, 172105), (1525, 137684), (3050, 68842), (6100, 34421)]