85709920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31511}}^1$

素因数の和:31543

約数の個数: 48

約数和(自身を含む): 214407648

約数和(自身を除く): 128697728

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 31511, 63022, 126044, 157555, 252088, 315110, 504176, 535687, 630220, 1008352, 1071374, 1260440, 2142748, 2520880, 2678435, 4285496, 5041760, 5356870, 8570992, 10713740, 17141984, 21427480, 42854960, 85709920]

約数ペア:

[(1, 85709920), (2, 42854960), (4, 21427480), (5, 17141984), (8, 10713740), (10, 8570992), (16, 5356870), (17, 5041760), (20, 4285496), (32, 2678435), (34, 2520880), (40, 2142748), (68, 1260440), (80, 1071374), (85, 1008352), (136, 630220), (160, 535687), (170, 504176), (272, 315110), (340, 252088), (544, 157555), (680, 126044), (1360, 63022), (2720, 31511)]