87385840

素因数分解:

$2^4\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1913}}^1$

素因数の和:2497

約数の個数: 40

約数和(自身を含む): 203634288

約数和(自身を除く): 116248448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 571, 1142, 1913, 2284, 2855, 3826, 4568, 5710, 7652, 9136, 9565, 11420, 15304, 19130, 22840, 30608, 38260, 45680, 76520, 153040, 1092323, 2184646, 4369292, 5461615, 8738584, 10923230, 17477168, 21846460, 43692920, 87385840]

約数ペア:

[(1, 87385840), (2, 43692920), (4, 21846460), (5, 17477168), (8, 10923230), (10, 8738584), (16, 5461615), (20, 4369292), (40, 2184646), (80, 1092323), (571, 153040), (1142, 76520), (1913, 45680), (2284, 38260), (2855, 30608), (3826, 22840), (4568, 19130), (5710, 15304), (7652, 11420), (9136, 9565)]