991567288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{1487}}^1$

素因数の和:1660

約数の個数: 64

約数和(自身を含む): 2024870400

約数和(自身を除く): 1033303112

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 107, 152, 164, 214, 328, 428, 779, 856, 1487, 1558, 2033, 2974, 3116, 4066, 4387, 5948, 6232, 8132, 8774, 11896, 16264, 17548, 28253, 35096, 56506, 60967, 83353, 113012, 121934, 159109, 166706, 226024, 243868, 318218, 333412, 487736, 636436, 666824, 1158373, 1272872, 2316746, 3023071, 4633492, 6046142, 6523469, 9266984, 12092284, 13046938, 24184568, 26093876, 52187752, 123945911, 247891822, 495783644, 991567288]

約数ペア:

[(1, 991567288), (2, 495783644), (4, 247891822), (8, 123945911), (19, 52187752), (38, 26093876), (41, 24184568), (76, 13046938), (82, 12092284), (107, 9266984), (152, 6523469), (164, 6046142), (214, 4633492), (328, 3023071), (428, 2316746), (779, 1272872), (856, 1158373), (1487, 666824), (1558, 636436), (2033, 487736), (2974, 333412), (3116, 318218), (4066, 243868), (4387, 226024), (5948, 166706), (6232, 159109), (8132, 121934), (8774, 113012), (11896, 83353), (16264, 60967), (17548, 56506), (28253, 35096)]