2021063680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{394739}}^1$

素因数の和:394764

約数の個数: 44

約数和(自身を含む): 4848196680

約数和(自身を除く): 2827133000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 394739, 789478, 1578956, 1973695, 3157912, 3947390, 6315824, 7894780, 12631648, 15789560, 25263296, 31579120, 50526592, 63158240, 101053184, 126316480, 202106368, 252632960, 404212736, 505265920, 1010531840, 2021063680]

約数ペア:

[(1, 2021063680), (2, 1010531840), (4, 505265920), (5, 404212736), (8, 252632960), (10, 202106368), (16, 126316480), (20, 101053184), (32, 63158240), (40, 50526592), (64, 31579120), (80, 25263296), (128, 15789560), (160, 12631648), (256, 7894780), (320, 6315824), (512, 3947390), (640, 3157912), (1024, 1973695), (1280, 1578956), (2560, 789478), (5120, 394739)]