208022140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{2579}}^1$

素因数の和:2734

約数の個数: 48

約数和(自身を含む): 452944800

約数和(自身を除く): 244922660

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 109, 148, 185, 218, 370, 436, 545, 740, 1090, 2180, 2579, 4033, 5158, 8066, 10316, 12895, 16132, 20165, 25790, 40330, 51580, 80660, 95423, 190846, 281111, 381692, 477115, 562222, 954230, 1124444, 1405555, 1908460, 2811110, 5622220, 10401107, 20802214, 41604428, 52005535, 104011070, 208022140]

約数ペア:

[(1, 208022140), (2, 104011070), (4, 52005535), (5, 41604428), (10, 20802214), (20, 10401107), (37, 5622220), (74, 2811110), (109, 1908460), (148, 1405555), (185, 1124444), (218, 954230), (370, 562222), (436, 477115), (545, 381692), (740, 281111), (1090, 190846), (2180, 95423), (2579, 80660), (4033, 51580), (5158, 40330), (8066, 25790), (10316, 20165), (12895, 16132)]