817504480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{393031}}^1$

素因数の和:393059

約数の個数: 48

約数和(自身を含む): 2079925344

約数和(自身を除く): 1262420864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 393031, 786062, 1572124, 1965155, 3144248, 3930310, 5109403, 6288496, 7860620, 10218806, 12576992, 15721240, 20437612, 25547015, 31442480, 40875224, 51094030, 62884960, 81750448, 102188060, 163500896, 204376120, 408752240, 817504480]

約数ペア:

[(1, 817504480), (2, 408752240), (4, 204376120), (5, 163500896), (8, 102188060), (10, 81750448), (13, 62884960), (16, 51094030), (20, 40875224), (26, 31442480), (32, 25547015), (40, 20437612), (52, 15721240), (65, 12576992), (80, 10218806), (104, 7860620), (130, 6288496), (160, 5109403), (208, 3930310), (260, 3144248), (416, 1965155), (520, 1572124), (1040, 786062), (2080, 393031)]