289349720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{313}}^1$

素因数の和:537

約数の個数: 96

約数和(自身を含む): 721647360

約数和(自身を除く): 432297640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 191, 220, 242, 313, 382, 440, 484, 605, 626, 764, 955, 968, 1210, 1252, 1528, 1565, 1910, 2101, 2420, 2504, 3130, 3443, 3820, 4202, 4840, 6260, 6886, 7640, 8404, 10505, 12520, 13772, 16808, 17215, 21010, 23111, 27544, 34430, 37873, 42020, 46222, 59783, 68860, 75746, 84040, 92444, 115555, 119566, 137720, 151492, 184888, 189365, 231110, 239132, 298915, 302984, 378730, 462220, 478264, 597830, 657613, 757460, 924440, 1195660, 1315226, 1514920, 2391320, 2630452, 3288065, 5260904, 6576130, 7233743, 13152260, 14467486, 26304520, 28934972, 36168715, 57869944, 72337430, 144674860, 289349720]

約数ペア:

[(1, 289349720), (2, 144674860), (4, 72337430), (5, 57869944), (8, 36168715), (10, 28934972), (11, 26304520), (20, 14467486), (22, 13152260), (40, 7233743), (44, 6576130), (55, 5260904), (88, 3288065), (110, 2630452), (121, 2391320), (191, 1514920), (220, 1315226), (242, 1195660), (313, 924440), (382, 757460), (440, 657613), (484, 597830), (605, 478264), (626, 462220), (764, 378730), (955, 302984), (968, 298915), (1210, 239132), (1252, 231110), (1528, 189365), (1565, 184888), (1910, 151492), (2101, 137720), (2420, 119566), (2504, 115555), (3130, 92444), (3443, 84040), (3820, 75746), (4202, 68860), (4840, 59783), (6260, 46222), (6886, 42020), (7640, 37873), (8404, 34430), (10505, 27544), (12520, 23111), (13772, 21010), (16808, 17215)]