78890

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{23}}^1$

素因数の和:51

約数の個数: 32

約数和(自身を含む): 172800

約数和(自身を除く): 93910

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 343, 490, 686, 805, 1127, 1610, 1715, 2254, 3430, 5635, 7889, 11270, 15778, 39445, 78890]

約数ペア:

[(1, 78890), (2, 39445), (5, 15778), (7, 11270), (10, 7889), (14, 5635), (23, 3430), (35, 2254), (46, 1715), (49, 1610), (70, 1127), (98, 805), (115, 686), (161, 490), (230, 343), (245, 322)]