257253290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{4973}}^1$

素因数の和:5726

約数の個数: 32

約数和(自身を含む): 530029440

約数和(自身を除く): 272776150

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 739, 1478, 3695, 4973, 5173, 7390, 9946, 10346, 24865, 25865, 34811, 49730, 51730, 69622, 174055, 348110, 3675047, 7350094, 18375235, 25725329, 36750470, 51450658, 128626645, 257253290]

約数ペア:

[(1, 257253290), (2, 128626645), (5, 51450658), (7, 36750470), (10, 25725329), (14, 18375235), (35, 7350094), (70, 3675047), (739, 348110), (1478, 174055), (3695, 69622), (4973, 51730), (5173, 49730), (7390, 34811), (9946, 25865), (10346, 24865)]