81711720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{75659}}^1$

素因数の和:75679

約数の個数: 64

約数和(自身を含む): 272376000

約数和(自身を除く): 190664280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 75659, 151318, 226977, 302636, 378295, 453954, 605272, 680931, 756590, 907908, 1134885, 1361862, 1513180, 1815816, 2042793, 2269770, 2723724, 3026360, 3404655, 4085586, 4539540, 5447448, 6809310, 8171172, 9079080, 10213965, 13618620, 16342344, 20427930, 27237240, 40855860, 81711720]

約数ペア:

[(1, 81711720), (2, 40855860), (3, 27237240), (4, 20427930), (5, 16342344), (6, 13618620), (8, 10213965), (9, 9079080), (10, 8171172), (12, 6809310), (15, 5447448), (18, 4539540), (20, 4085586), (24, 3404655), (27, 3026360), (30, 2723724), (36, 2269770), (40, 2042793), (45, 1815816), (54, 1513180), (60, 1361862), (72, 1134885), (90, 907908), (108, 756590), (120, 680931), (135, 605272), (180, 453954), (216, 378295), (270, 302636), (360, 226977), (540, 151318), (1080, 75659)]