81818910

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1217}}^1$

素因数の和:1319

約数の個数: 80

約数和(自身を含む): 222835536

約数和(自身を除く): 141016626

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 83, 90, 135, 162, 166, 249, 270, 405, 415, 498, 747, 810, 830, 1217, 1245, 1494, 2241, 2434, 2490, 3651, 3735, 4482, 6085, 6723, 7302, 7470, 10953, 11205, 12170, 13446, 18255, 21906, 22410, 32859, 33615, 36510, 54765, 65718, 67230, 98577, 101011, 109530, 164295, 197154, 202022, 303033, 328590, 492885, 505055, 606066, 909099, 985770, 1010110, 1515165, 1818198, 2727297, 3030330, 4545495, 5454594, 8181891, 9090990, 13636485, 16363782, 27272970, 40909455, 81818910]

約数ペア:

[(1, 81818910), (2, 40909455), (3, 27272970), (5, 16363782), (6, 13636485), (9, 9090990), (10, 8181891), (15, 5454594), (18, 4545495), (27, 3030330), (30, 2727297), (45, 1818198), (54, 1515165), (81, 1010110), (83, 985770), (90, 909099), (135, 606066), (162, 505055), (166, 492885), (249, 328590), (270, 303033), (405, 202022), (415, 197154), (498, 164295), (747, 109530), (810, 101011), (830, 98577), (1217, 67230), (1245, 65718), (1494, 54765), (2241, 36510), (2434, 33615), (2490, 32859), (3651, 22410), (3735, 21906), (4482, 18255), (6085, 13446), (6723, 12170), (7302, 11205), (7470, 10953)]