78609920

素因数分解:

$2^9\times 5^1\times {\mathrm{30707}}^1$

素因数の和:30730

約数の個数: 40

約数和(自身を含む): 188485704

約数和(自身を除く): 109875784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 30707, 61414, 122828, 153535, 245656, 307070, 491312, 614140, 982624, 1228280, 1965248, 2456560, 3930496, 4913120, 7860992, 9826240, 15721984, 19652480, 39304960, 78609920]

約数ペア:

[(1, 78609920), (2, 39304960), (4, 19652480), (5, 15721984), (8, 9826240), (10, 7860992), (16, 4913120), (20, 3930496), (32, 2456560), (40, 1965248), (64, 1228280), (80, 982624), (128, 614140), (160, 491312), (256, 307070), (320, 245656), (512, 153535), (640, 122828), (1280, 61414), (2560, 30707)]