28577680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21013}}^1$

素因数の和:21043

約数の個数: 40

約数和(自身を含む): 70354872

約数和(自身を除く): 41777192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21013, 42026, 84052, 105065, 168104, 210130, 336208, 357221, 420260, 714442, 840520, 1428884, 1681040, 1786105, 2857768, 3572210, 5715536, 7144420, 14288840, 28577680]

約数ペア:

[(1, 28577680), (2, 14288840), (4, 7144420), (5, 5715536), (8, 3572210), (10, 2857768), (16, 1786105), (17, 1681040), (20, 1428884), (34, 840520), (40, 714442), (68, 420260), (80, 357221), (85, 336208), (136, 210130), (170, 168104), (272, 105065), (340, 84052), (680, 42026), (1360, 21013)]