38740420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 84224448

約数和(自身を除く): 45484028

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 107, 172, 214, 215, 421, 428, 430, 535, 842, 860, 1070, 1684, 2105, 2140, 4210, 4601, 8420, 9202, 18103, 18404, 23005, 36206, 45047, 46010, 72412, 90094, 90515, 92020, 180188, 181030, 225235, 362060, 450470, 900940, 1937021, 3874042, 7748084, 9685105, 19370210, 38740420]

約数ペア:

[(1, 38740420), (2, 19370210), (4, 9685105), (5, 7748084), (10, 3874042), (20, 1937021), (43, 900940), (86, 450470), (107, 362060), (172, 225235), (214, 181030), (215, 180188), (421, 92020), (428, 90515), (430, 90094), (535, 72412), (842, 46010), (860, 45047), (1070, 36206), (1684, 23005), (2105, 18404), (2140, 18103), (4210, 9202), (4601, 8420)]