140606980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1193}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 303295104

約数和(自身を除く): 162688124

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 284, 332, 355, 415, 710, 830, 1193, 1420, 1660, 2386, 4772, 5893, 5965, 11786, 11930, 23572, 23860, 29465, 58930, 84703, 99019, 117860, 169406, 198038, 338812, 396076, 423515, 495095, 847030, 990190, 1694060, 1980380, 7030349, 14060698, 28121396, 35151745, 70303490, 140606980]

約数ペア:

[(1, 140606980), (2, 70303490), (4, 35151745), (5, 28121396), (10, 14060698), (20, 7030349), (71, 1980380), (83, 1694060), (142, 990190), (166, 847030), (284, 495095), (332, 423515), (355, 396076), (415, 338812), (710, 198038), (830, 169406), (1193, 117860), (1420, 99019), (1660, 84703), (2386, 58930), (4772, 29465), (5893, 23860), (5965, 23572), (11786, 11930)]