71018920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{253639}}^1$

素因数の和:253657

約数の個数: 32

約数和(自身を含む): 182620800

約数和(自身を除く): 111601880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 253639, 507278, 1014556, 1268195, 1775473, 2029112, 2536390, 3550946, 5072780, 7101892, 8877365, 10145560, 14203784, 17754730, 35509460, 71018920]

約数ペア:

[(1, 71018920), (2, 35509460), (4, 17754730), (5, 14203784), (7, 10145560), (8, 8877365), (10, 7101892), (14, 5072780), (20, 3550946), (28, 2536390), (35, 2029112), (40, 1775473), (56, 1268195), (70, 1014556), (140, 507278), (280, 253639)]