1285386460

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{64853}}^1$

素因数の和:65853

約数の個数: 24

約数和(自身を含む): 2702077056

約数和(自身を除く): 1416690596

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 9910, 19820, 64853, 129706, 259412, 324265, 648530, 1297060, 64269323, 128538646, 257077292, 321346615, 642693230, 1285386460]

約数ペア:

[(1, 1285386460), (2, 642693230), (4, 321346615), (5, 257077292), (10, 128538646), (20, 64269323), (991, 1297060), (1982, 648530), (3964, 324265), (4955, 259412), (9910, 129706), (19820, 64853)]