253132280

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{9781}}^1$

素因数の和:10439

約数の個数: 32

約数和(自身を含む): 570486240

約数和(自身を除く): 317353960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 5176, 6470, 9781, 12940, 19562, 25880, 39124, 48905, 78248, 97810, 195620, 391240, 6328307, 12656614, 25313228, 31641535, 50626456, 63283070, 126566140, 253132280]

約数ペア:

[(1, 253132280), (2, 126566140), (4, 63283070), (5, 50626456), (8, 31641535), (10, 25313228), (20, 12656614), (40, 6328307), (647, 391240), (1294, 195620), (2588, 97810), (3235, 78248), (5176, 48905), (6470, 39124), (9781, 25880), (12940, 19562)]