1278460

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 2716560

約数和(自身を除く): 1438100

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 659, 970, 1318, 1940, 2636, 3295, 6590, 13180, 63923, 127846, 255692, 319615, 639230, 1278460]

約数ペア:

[(1, 1278460), (2, 639230), (4, 319615), (5, 255692), (10, 127846), (20, 63923), (97, 13180), (194, 6590), (388, 3295), (485, 2636), (659, 1940), (970, 1318)]