20108691472

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{547}}^1$

素因数の和:968

約数の個数: 80

約数和(自身を含む): 39959853120

約数和(自身を除く): 19851161648

約数列:

[1, 2, 4, 8, 16, 107, 109, 197, 214, 218, 394, 428, 436, 547, 788, 856, 872, 1094, 1576, 1712, 1744, 2188, 3152, 4376, 8752, 11663, 21079, 21473, 23326, 42158, 42946, 46652, 58529, 59623, 84316, 85892, 93304, 107759, 117058, 119246, 168632, 171784, 186608, 215518, 234116, 238492, 337264, 343568, 431036, 468232, 476984, 862072, 936464, 953968, 1724144, 2297611, 4595222, 6379661, 9190444, 11530213, 11745731, 12759322, 18380888, 23060426, 23491462, 25518644, 36761776, 46120852, 46982924, 51037288, 92241704, 93965848, 102074576, 184483408, 187931696, 1256793217, 2513586434, 5027172868, 10054345736, 20108691472]

約数ペア:

[(1, 20108691472), (2, 10054345736), (4, 5027172868), (8, 2513586434), (16, 1256793217), (107, 187931696), (109, 184483408), (197, 102074576), (214, 93965848), (218, 92241704), (394, 51037288), (428, 46982924), (436, 46120852), (547, 36761776), (788, 25518644), (856, 23491462), (872, 23060426), (1094, 18380888), (1576, 12759322), (1712, 11745731), (1744, 11530213), (2188, 9190444), (3152, 6379661), (4376, 4595222), (8752, 2297611), (11663, 1724144), (21079, 953968), (21473, 936464), (23326, 862072), (42158, 476984), (42946, 468232), (46652, 431036), (58529, 343568), (59623, 337264), (84316, 238492), (85892, 234116), (93304, 215518), (107759, 186608), (117058, 171784), (119246, 168632)]