77687680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17341}}^1$

素因数の和:17367

約数の個数: 64

約数和(自身を含む): 212266080

約数和(自身を除く): 134578400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 17341, 34682, 69364, 86705, 121387, 138728, 173410, 242774, 277456, 346820, 485548, 554912, 606935, 693640, 971096, 1109824, 1213870, 1387280, 1942192, 2219648, 2427740, 2774560, 3884384, 4855480, 5549120, 7768768, 9710960, 11098240, 15537536, 19421920, 38843840, 77687680]

約数ペア:

[(1, 77687680), (2, 38843840), (4, 19421920), (5, 15537536), (7, 11098240), (8, 9710960), (10, 7768768), (14, 5549120), (16, 4855480), (20, 3884384), (28, 2774560), (32, 2427740), (35, 2219648), (40, 1942192), (56, 1387280), (64, 1213870), (70, 1109824), (80, 971096), (112, 693640), (128, 606935), (140, 554912), (160, 485548), (224, 346820), (280, 277456), (320, 242774), (448, 173410), (560, 138728), (640, 121387), (896, 86705), (1120, 69364), (2240, 34682), (4480, 17341)]