20448710

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 17435962

約数列:

[1, 2, 5, 10, 71, 83, 142, 166, 347, 355, 415, 694, 710, 830, 1735, 3470, 5893, 11786, 24637, 28801, 29465, 49274, 57602, 58930, 123185, 144005, 246370, 288010, 2044871, 4089742, 10224355, 20448710]

約数ペア:

[(1, 20448710), (2, 10224355), (5, 4089742), (10, 2044871), (71, 288010), (83, 246370), (142, 144005), (166, 123185), (347, 58930), (355, 57602), (415, 49274), (694, 29465), (710, 28801), (830, 24637), (1735, 11786), (3470, 5893)]