81374520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9551}}^1$

素因数の和:9636

約数の個数: 64

約数和(自身を含む): 247587840

約数和(自身を除く): 166213320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 9551, 19102, 28653, 38204, 47755, 57306, 76408, 95510, 114612, 143265, 191020, 229224, 286530, 382040, 573060, 678121, 1146120, 1356242, 2034363, 2712484, 3390605, 4068726, 5424968, 6781210, 8137452, 10171815, 13562420, 16274904, 20343630, 27124840, 40687260, 81374520]

約数ペア:

[(1, 81374520), (2, 40687260), (3, 27124840), (4, 20343630), (5, 16274904), (6, 13562420), (8, 10171815), (10, 8137452), (12, 6781210), (15, 5424968), (20, 4068726), (24, 3390605), (30, 2712484), (40, 2034363), (60, 1356242), (71, 1146120), (120, 678121), (142, 573060), (213, 382040), (284, 286530), (355, 229224), (426, 191020), (568, 143265), (710, 114612), (852, 95510), (1065, 76408), (1420, 57306), (1704, 47755), (2130, 38204), (2840, 28653), (4260, 19102), (8520, 9551)]