81214240

素因数分解:

$2^5\times 5^1\times {\mathrm{507589}}^1$

素因数の和:507604

約数の個数: 24

約数和(自身を含む): 191869020

約数和(自身を除く): 110654780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 507589, 1015178, 2030356, 2537945, 4060712, 5075890, 8121424, 10151780, 16242848, 20303560, 40607120, 81214240]

約数ペア:

[(1, 81214240), (2, 40607120), (4, 20303560), (5, 16242848), (8, 10151780), (10, 8121424), (16, 5075890), (20, 4060712), (32, 2537945), (40, 2030356), (80, 1015178), (160, 507589)]