1276665640

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{103963}}^1$

素因数の和:104281

約数の個数: 32

約数和(自身を含む): 2881882080

約数和(自身を除く): 1605216440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 103963, 207926, 415852, 519815, 831704, 1039630, 2079260, 4158520, 31916641, 63833282, 127666564, 159583205, 255333128, 319166410, 638332820, 1276665640]

約数ペア:

[(1, 1276665640), (2, 638332820), (4, 319166410), (5, 255333128), (8, 159583205), (10, 127666564), (20, 63833282), (40, 31916641), (307, 4158520), (614, 2079260), (1228, 1039630), (1535, 831704), (2456, 519815), (3070, 415852), (6140, 207926), (12280, 103963)]