129379840

素因数分解:

$2^9\times 5^1\times {\mathrm{50539}}^1$

素因数の和:50562

約数の個数: 40

約数和(自身を含む): 310214520

約数和(自身を除く): 180834680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 50539, 101078, 202156, 252695, 404312, 505390, 808624, 1010780, 1617248, 2021560, 3234496, 4043120, 6468992, 8086240, 12937984, 16172480, 25875968, 32344960, 64689920, 129379840]

約数ペア:

[(1, 129379840), (2, 64689920), (4, 32344960), (5, 25875968), (8, 16172480), (10, 12937984), (16, 8086240), (20, 6468992), (32, 4043120), (40, 3234496), (64, 2021560), (80, 1617248), (128, 1010780), (160, 808624), (256, 505390), (320, 404312), (512, 252695), (640, 202156), (1280, 101078), (2560, 50539)]