15563860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 36352512

約数和(自身を除く): 20788652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 1931, 2015, 3862, 4030, 7724, 8060, 9655, 19310, 25103, 38620, 50206, 59861, 100412, 119722, 125515, 239444, 251030, 299305, 502060, 598610, 778193, 1197220, 1556386, 3112772, 3890965, 7781930, 15563860]

約数ペア:

[(1, 15563860), (2, 7781930), (4, 3890965), (5, 3112772), (10, 1556386), (13, 1197220), (20, 778193), (26, 598610), (31, 502060), (52, 299305), (62, 251030), (65, 239444), (124, 125515), (130, 119722), (155, 100412), (260, 59861), (310, 50206), (403, 38620), (620, 25103), (806, 19310), (1612, 9655), (1931, 8060), (2015, 7724), (3862, 4030)]