20425140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2141}}^1$

素因数の和:2209

約数の個数: 72

約数和(自身を含む): 63154728

約数和(自身を除く): 42729588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2141, 2385, 3180, 4282, 4770, 6423, 8564, 9540, 10705, 12846, 19269, 21410, 25692, 32115, 38538, 42820, 64230, 77076, 96345, 113473, 128460, 192690, 226946, 340419, 385380, 453892, 567365, 680838, 1021257, 1134730, 1361676, 1702095, 2042514, 2269460, 3404190, 4085028, 5106285, 6808380, 10212570, 20425140]

約数ペア:

[(1, 20425140), (2, 10212570), (3, 6808380), (4, 5106285), (5, 4085028), (6, 3404190), (9, 2269460), (10, 2042514), (12, 1702095), (15, 1361676), (18, 1134730), (20, 1021257), (30, 680838), (36, 567365), (45, 453892), (53, 385380), (60, 340419), (90, 226946), (106, 192690), (159, 128460), (180, 113473), (212, 96345), (265, 77076), (318, 64230), (477, 42820), (530, 38538), (636, 32115), (795, 25692), (954, 21410), (1060, 19269), (1590, 12846), (1908, 10705), (2141, 9540), (2385, 8564), (3180, 6423), (4282, 4770)]