40357420

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10243}}^1$

素因数の和:10449

約数の個数: 24

約数和(自身を含む): 85189104

約数和(自身を除く): 44831684

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 10243, 20486, 40972, 51215, 102430, 204860, 2017871, 4035742, 8071484, 10089355, 20178710, 40357420]

約数ペア:

[(1, 40357420), (2, 20178710), (4, 10089355), (5, 8071484), (10, 4035742), (20, 2017871), (197, 204860), (394, 102430), (788, 51215), (985, 40972), (1970, 20486), (3940, 10243)]