20654520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9059}}^1$

素因数の和:9092

約数の個数: 64

約数和(自身を含む): 65232000

約数和(自身を除く): 44577480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9059, 18118, 27177, 36236, 45295, 54354, 72472, 90590, 108708, 135885, 172121, 181180, 217416, 271770, 344242, 362360, 516363, 543540, 688484, 860605, 1032726, 1087080, 1376968, 1721210, 2065452, 2581815, 3442420, 4130904, 5163630, 6884840, 10327260, 20654520]

約数ペア:

[(1, 20654520), (2, 10327260), (3, 6884840), (4, 5163630), (5, 4130904), (6, 3442420), (8, 2581815), (10, 2065452), (12, 1721210), (15, 1376968), (19, 1087080), (20, 1032726), (24, 860605), (30, 688484), (38, 543540), (40, 516363), (57, 362360), (60, 344242), (76, 271770), (95, 217416), (114, 181180), (120, 172121), (152, 135885), (190, 108708), (228, 90590), (285, 72472), (380, 54354), (456, 45295), (570, 36236), (760, 27177), (1140, 18118), (2280, 9059)]