20800680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1787}}^1$

素因数の和:1898

約数の個数: 64

約数和(自身を含む): 63080640

約数和(自身を除く): 42279960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1787, 1940, 2328, 2910, 3574, 3880, 5361, 5820, 7148, 8935, 10722, 11640, 14296, 17870, 21444, 26805, 35740, 42888, 53610, 71480, 107220, 173339, 214440, 346678, 520017, 693356, 866695, 1040034, 1386712, 1733390, 2080068, 2600085, 3466780, 4160136, 5200170, 6933560, 10400340, 20800680]

約数ペア:

[(1, 20800680), (2, 10400340), (3, 6933560), (4, 5200170), (5, 4160136), (6, 3466780), (8, 2600085), (10, 2080068), (12, 1733390), (15, 1386712), (20, 1040034), (24, 866695), (30, 693356), (40, 520017), (60, 346678), (97, 214440), (120, 173339), (194, 107220), (291, 71480), (388, 53610), (485, 42888), (582, 35740), (776, 26805), (970, 21444), (1164, 17870), (1455, 14296), (1787, 11640), (1940, 10722), (2328, 8935), (2910, 7148), (3574, 5820), (3880, 5361)]