80921490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{207491}}^1$

素因数の和:207514

約数の個数: 32

約数和(自身を含む): 209151936

約数和(自身を除く): 128230446

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 207491, 414982, 622473, 1037455, 1244946, 2074910, 2697383, 3112365, 5394766, 6224730, 8092149, 13486915, 16184298, 26973830, 40460745, 80921490]

約数ペア:

[(1, 80921490), (2, 40460745), (3, 26973830), (5, 16184298), (6, 13486915), (10, 8092149), (13, 6224730), (15, 5394766), (26, 3112365), (30, 2697383), (39, 2074910), (65, 1244946), (78, 1037455), (130, 622473), (195, 414982), (390, 207491)]