20287320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{293}}^1\times {\mathrm{577}}^1$

素因数の和:884

約数の個数: 64

約数和(自身を含む): 61175520

約数和(自身を除く): 40888200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 293, 577, 586, 879, 1154, 1172, 1465, 1731, 1758, 2308, 2344, 2885, 2930, 3462, 3516, 4395, 4616, 5770, 5860, 6924, 7032, 8655, 8790, 11540, 11720, 13848, 17310, 17580, 23080, 34620, 35160, 69240, 169061, 338122, 507183, 676244, 845305, 1014366, 1352488, 1690610, 2028732, 2535915, 3381220, 4057464, 5071830, 6762440, 10143660, 20287320]

約数ペア:

[(1, 20287320), (2, 10143660), (3, 6762440), (4, 5071830), (5, 4057464), (6, 3381220), (8, 2535915), (10, 2028732), (12, 1690610), (15, 1352488), (20, 1014366), (24, 845305), (30, 676244), (40, 507183), (60, 338122), (120, 169061), (293, 69240), (577, 35160), (586, 34620), (879, 23080), (1154, 17580), (1172, 17310), (1465, 13848), (1731, 11720), (1758, 11540), (2308, 8790), (2344, 8655), (2885, 7032), (2930, 6924), (3462, 5860), (3516, 5770), (4395, 4616)]