123378.00000000

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{347}}^1$

素因数の和:675

約数の個数: 40

約数和(自身を含む): 46517856

約数和(自身を除く): 24359824

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 307, 347, 614, 694, 1228, 1388, 2456, 2776, 3991, 4511, 4912, 5552, 7982, 9022, 15964, 18044, 31928, 36088, 63856, 72176, 106529, 213058, 426116, 852232, 1384877, 1704464, 2769754, 5539508, 11079016, 22158032]

約数ペア:

[(1, 22158032), (2, 11079016), (4, 5539508), (8, 2769754), (13, 1704464), (16, 1384877), (26, 852232), (52, 426116), (104, 213058), (208, 106529), (307, 72176), (347, 63856), (614, 36088), (694, 31928), (1228, 18044), (1388, 15964), (2456, 9022), (2776, 7982), (3991, 5552), (4511, 4912)]