20451780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113621}}^1$

素因数の和:113636

約数の個数: 36

約数和(自身を含む): 62037612

約数和(自身を除く): 41585832

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113621, 227242, 340863, 454484, 568105, 681726, 1022589, 1136210, 1363452, 1704315, 2045178, 2272420, 3408630, 4090356, 5112945, 6817260, 10225890, 20451780]

約数ペア:

[(1, 20451780), (2, 10225890), (3, 6817260), (4, 5112945), (5, 4090356), (6, 3408630), (9, 2272420), (10, 2045178), (12, 1704315), (15, 1363452), (18, 1136210), (20, 1022589), (30, 681726), (36, 568105), (45, 454484), (60, 340863), (90, 227242), (180, 113621)]