1991231460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1033}}^1\times {\mathrm{10709}}^1$

素因数の和:11757

約数の個数: 72

約数和(自身を含む): 6046480440

約数和(自身を除く): 4055248980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1033, 2066, 3099, 4132, 5165, 6198, 9297, 10330, 10709, 12396, 15495, 18594, 20660, 21418, 30990, 32127, 37188, 42836, 46485, 53545, 61980, 64254, 92970, 96381, 107090, 128508, 160635, 185940, 192762, 214180, 321270, 385524, 481905, 642540, 963810, 1927620, 11062397, 22124794, 33187191, 44249588, 55311985, 66374382, 99561573, 110623970, 132748764, 165935955, 199123146, 221247940, 331871910, 398246292, 497807865, 663743820, 995615730, 1991231460]

約数ペア:

[(1, 1991231460), (2, 995615730), (3, 663743820), (4, 497807865), (5, 398246292), (6, 331871910), (9, 221247940), (10, 199123146), (12, 165935955), (15, 132748764), (18, 110623970), (20, 99561573), (30, 66374382), (36, 55311985), (45, 44249588), (60, 33187191), (90, 22124794), (180, 11062397), (1033, 1927620), (2066, 963810), (3099, 642540), (4132, 481905), (5165, 385524), (6198, 321270), (9297, 214180), (10330, 192762), (10709, 185940), (12396, 160635), (15495, 128508), (18594, 107090), (20660, 96381), (21418, 92970), (30990, 64254), (32127, 61980), (37188, 53545), (42836, 46485)]