20744460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10477}}^1$

素因数の和:10503

約数の個数: 72

約数和(自身を含む): 68651856

約数和(自身を除く): 47907396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10477, 20954, 31431, 41908, 52385, 62862, 94293, 104770, 115247, 125724, 157155, 188586, 209540, 230494, 314310, 345741, 377172, 460988, 471465, 576235, 628620, 691482, 942930, 1037223, 1152470, 1382964, 1728705, 1885860, 2074446, 2304940, 3457410, 4148892, 5186115, 6914820, 10372230, 20744460]

約数ペア:

[(1, 20744460), (2, 10372230), (3, 6914820), (4, 5186115), (5, 4148892), (6, 3457410), (9, 2304940), (10, 2074446), (11, 1885860), (12, 1728705), (15, 1382964), (18, 1152470), (20, 1037223), (22, 942930), (30, 691482), (33, 628620), (36, 576235), (44, 471465), (45, 460988), (55, 377172), (60, 345741), (66, 314310), (90, 230494), (99, 209540), (110, 188586), (132, 157155), (165, 125724), (180, 115247), (198, 104770), (220, 94293), (330, 62862), (396, 52385), (495, 41908), (660, 31431), (990, 20954), (1980, 10477)]