31061720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2687}}^1$

素因数の和:2732

約数の個数: 48

約数和(自身を含む): 74269440

約数和(自身を除く): 43207720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2687, 2890, 5374, 5780, 10748, 11560, 13435, 21496, 26870, 45679, 53740, 91358, 107480, 182716, 228395, 365432, 456790, 776543, 913580, 1553086, 1827160, 3106172, 3882715, 6212344, 7765430, 15530860, 31061720]

約数ペア:

[(1, 31061720), (2, 15530860), (4, 7765430), (5, 6212344), (8, 3882715), (10, 3106172), (17, 1827160), (20, 1553086), (34, 913580), (40, 776543), (68, 456790), (85, 365432), (136, 228395), (170, 182716), (289, 107480), (340, 91358), (578, 53740), (680, 45679), (1156, 26870), (1445, 21496), (2312, 13435), (2687, 11560), (2890, 10748), (5374, 5780)]