81669780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19727}}^1$

素因数の和:19765

約数の個数: 72

約数和(自身を含む): 258515712

約数和(自身を除く): 176845932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 19727, 39454, 59181, 78908, 98635, 118362, 177543, 197270, 236724, 295905, 355086, 394540, 453721, 591810, 710172, 887715, 907442, 1183620, 1361163, 1775430, 1814884, 2268605, 2722326, 3550860, 4083489, 4537210, 5444652, 6805815, 8166978, 9074420, 13611630, 16333956, 20417445, 27223260, 40834890, 81669780]

約数ペア:

[(1, 81669780), (2, 40834890), (3, 27223260), (4, 20417445), (5, 16333956), (6, 13611630), (9, 9074420), (10, 8166978), (12, 6805815), (15, 5444652), (18, 4537210), (20, 4083489), (23, 3550860), (30, 2722326), (36, 2268605), (45, 1814884), (46, 1775430), (60, 1361163), (69, 1183620), (90, 907442), (92, 887715), (115, 710172), (138, 591810), (180, 453721), (207, 394540), (230, 355086), (276, 295905), (345, 236724), (414, 197270), (460, 177543), (690, 118362), (828, 98635), (1035, 78908), (1380, 59181), (2070, 39454), (4140, 19727)]