80227760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{58991}}^1$

素因数の和:59021

約数の個数: 40

約数和(自身を含む): 197505216

約数和(自身を除く): 117277456

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 58991, 117982, 235964, 294955, 471928, 589910, 943856, 1002847, 1179820, 2005694, 2359640, 4011388, 4719280, 5014235, 8022776, 10028470, 16045552, 20056940, 40113880, 80227760]

約数ペア:

[(1, 80227760), (2, 40113880), (4, 20056940), (5, 16045552), (8, 10028470), (10, 8022776), (16, 5014235), (17, 4719280), (20, 4011388), (34, 2359640), (40, 2005694), (68, 1179820), (80, 1002847), (85, 943856), (136, 589910), (170, 471928), (272, 294955), (340, 235964), (680, 117982), (1360, 58991)]