15841930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3931}}^1$

素因数の和:3982

約数の個数: 32

約数和(自身を含む): 31707648

約数和(自身を除く): 15865718

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 3931, 4030, 7862, 19655, 39310, 51103, 102206, 121861, 243722, 255515, 511030, 609305, 1218610, 1584193, 3168386, 7920965, 15841930]

約数ペア:

[(1, 15841930), (2, 7920965), (5, 3168386), (10, 1584193), (13, 1218610), (26, 609305), (31, 511030), (62, 255515), (65, 243722), (130, 121861), (155, 102206), (310, 51103), (403, 39310), (806, 19655), (2015, 7862), (3931, 4030)]