20657822160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2776589}}^1$

素因数の和:2776636

約数の個数: 80

約数和(自身を含む): 66105054720

約数和(自身を除く): 45447232560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 2776589, 5553178, 8329767, 11106356, 13882945, 16659534, 22212712, 27765890, 33319068, 41648835, 44425424, 55531780, 66638136, 83297670, 86074259, 111063560, 133276272, 166595340, 172148518, 222127120, 258222777, 333190680, 344297036, 430371295, 516445554, 666381360, 688594072, 860742590, 1032891108, 1291113885, 1377188144, 1721485180, 2065782216, 2582227770, 3442970360, 4131564432, 5164455540, 6885940720, 10328911080, 20657822160]

約数ペア:

[(1, 20657822160), (2, 10328911080), (3, 6885940720), (4, 5164455540), (5, 4131564432), (6, 3442970360), (8, 2582227770), (10, 2065782216), (12, 1721485180), (15, 1377188144), (16, 1291113885), (20, 1032891108), (24, 860742590), (30, 688594072), (31, 666381360), (40, 516445554), (48, 430371295), (60, 344297036), (62, 333190680), (80, 258222777), (93, 222127120), (120, 172148518), (124, 166595340), (155, 133276272), (186, 111063560), (240, 86074259), (248, 83297670), (310, 66638136), (372, 55531780), (465, 44425424), (496, 41648835), (620, 33319068), (744, 27765890), (930, 22212712), (1240, 16659534), (1488, 13882945), (1860, 11106356), (2480, 8329767), (3720, 5553178), (7440, 2776589)]