31088920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 74844000

約数和(自身を除く): 43755080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 131, 136, 170, 262, 340, 349, 524, 655, 680, 698, 1048, 1310, 1396, 1745, 2227, 2620, 2792, 3490, 4454, 5240, 5933, 6980, 8908, 11135, 11866, 13960, 17816, 22270, 23732, 29665, 44540, 45719, 47464, 59330, 89080, 91438, 118660, 182876, 228595, 237320, 365752, 457190, 777223, 914380, 1554446, 1828760, 3108892, 3886115, 6217784, 7772230, 15544460, 31088920]

約数ペア:

[(1, 31088920), (2, 15544460), (4, 7772230), (5, 6217784), (8, 3886115), (10, 3108892), (17, 1828760), (20, 1554446), (34, 914380), (40, 777223), (68, 457190), (85, 365752), (131, 237320), (136, 228595), (170, 182876), (262, 118660), (340, 91438), (349, 89080), (524, 59330), (655, 47464), (680, 45719), (698, 44540), (1048, 29665), (1310, 23732), (1396, 22270), (1745, 17816), (2227, 13960), (2620, 11866), (2792, 11135), (3490, 8908), (4454, 6980), (5240, 5933)]