161778645

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{73369}}^1$

素因数の和:73394

約数の個数: 36

約数和(自身を含む): 326203020

約数和(自身を除く): 164424375

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 73369, 220107, 366845, 513583, 660321, 1100535, 1540749, 2567915, 3301605, 3595081, 4622247, 7703745, 10785243, 17975405, 23111235, 32355729, 53926215, 161778645]

約数ペア:

[(1, 161778645), (3, 53926215), (5, 32355729), (7, 23111235), (9, 17975405), (15, 10785243), (21, 7703745), (35, 4622247), (45, 3595081), (49, 3301605), (63, 2567915), (105, 1540749), (147, 1100535), (245, 660321), (315, 513583), (441, 366845), (735, 220107), (2205, 73369)]