19943760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3613}}^1$

素因数の和:3652

約数の個数: 80

約数和(自身を含む): 64531584

約数和(自身を除く): 44587824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3613, 5520, 7226, 10839, 14452, 18065, 21678, 28904, 36130, 43356, 54195, 57808, 72260, 83099, 86712, 108390, 144520, 166198, 173424, 216780, 249297, 289040, 332396, 415495, 433560, 498594, 664792, 830990, 867120, 997188, 1246485, 1329584, 1661980, 1994376, 2492970, 3323960, 3988752, 4985940, 6647920, 9971880, 19943760]

約数ペア:

[(1, 19943760), (2, 9971880), (3, 6647920), (4, 4985940), (5, 3988752), (6, 3323960), (8, 2492970), (10, 1994376), (12, 1661980), (15, 1329584), (16, 1246485), (20, 997188), (23, 867120), (24, 830990), (30, 664792), (40, 498594), (46, 433560), (48, 415495), (60, 332396), (69, 289040), (80, 249297), (92, 216780), (115, 173424), (120, 166198), (138, 144520), (184, 108390), (230, 86712), (240, 83099), (276, 72260), (345, 57808), (368, 54195), (460, 43356), (552, 36130), (690, 28904), (920, 21678), (1104, 18065), (1380, 14452), (1840, 10839), (2760, 7226), (3613, 5520)]