20740140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115223}}^1$

素因数の和:115238

約数の個数: 36

約数和(自身を含む): 62912304

約数和(自身を除く): 42172164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115223, 230446, 345669, 460892, 576115, 691338, 1037007, 1152230, 1382676, 1728345, 2074014, 2304460, 3456690, 4148028, 5185035, 6913380, 10370070, 20740140]

約数ペア:

[(1, 20740140), (2, 10370070), (3, 6913380), (4, 5185035), (5, 4148028), (6, 3456690), (9, 2304460), (10, 2074014), (12, 1728345), (15, 1382676), (18, 1152230), (20, 1037007), (30, 691338), (36, 576115), (45, 460892), (60, 345669), (90, 230446), (180, 115223)]