81439860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79843}}^1$

素因数の和:79872

約数の個数: 48

約数和(自身を含む): 241448256

約数和(自身を除く): 160008396

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 79843, 159686, 239529, 319372, 399215, 479058, 798430, 958116, 1197645, 1357331, 1596860, 2395290, 2714662, 4071993, 4790580, 5429324, 6786655, 8143986, 13573310, 16287972, 20359965, 27146620, 40719930, 81439860]

約数ペア:

[(1, 81439860), (2, 40719930), (3, 27146620), (4, 20359965), (5, 16287972), (6, 13573310), (10, 8143986), (12, 6786655), (15, 5429324), (17, 4790580), (20, 4071993), (30, 2714662), (34, 2395290), (51, 1596860), (60, 1357331), (68, 1197645), (85, 958116), (102, 798430), (170, 479058), (204, 399215), (255, 319372), (340, 239529), (510, 159686), (1020, 79843)]