218859440

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73939}}^1$

素因数の和:73989

約数の個数: 40

約数和(自身を含む): 522607920

約数和(自身を除く): 303748480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 73939, 147878, 295756, 369695, 591512, 739390, 1183024, 1478780, 2735743, 2957560, 5471486, 5915120, 10942972, 13678715, 21885944, 27357430, 43771888, 54714860, 109429720, 218859440]

約数ペア:

[(1, 218859440), (2, 109429720), (4, 54714860), (5, 43771888), (8, 27357430), (10, 21885944), (16, 13678715), (20, 10942972), (37, 5915120), (40, 5471486), (74, 2957560), (80, 2735743), (148, 1478780), (185, 1183024), (296, 739390), (370, 591512), (592, 369695), (740, 295756), (1480, 147878), (2960, 73939)]