20992560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3803}}^1$

素因数の和:3842

約数の個数: 80

約数和(自身を含む): 67924224

約数和(自身を除く): 46931664

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, 3803, 5520, 7606, 11409, 15212, 19015, 22818, 30424, 38030, 45636, 57045, 60848, 76060, 87469, 91272, 114090, 152120, 174938, 182544, 228180, 262407, 304240, 349876, 437345, 456360, 524814, 699752, 874690, 912720, 1049628, 1312035, 1399504, 1749380, 2099256, 2624070, 3498760, 4198512, 5248140, 6997520, 10496280, 20992560]

約数ペア:

[(1, 20992560), (2, 10496280), (3, 6997520), (4, 5248140), (5, 4198512), (6, 3498760), (8, 2624070), (10, 2099256), (12, 1749380), (15, 1399504), (16, 1312035), (20, 1049628), (23, 912720), (24, 874690), (30, 699752), (40, 524814), (46, 456360), (48, 437345), (60, 349876), (69, 304240), (80, 262407), (92, 228180), (115, 182544), (120, 174938), (138, 152120), (184, 114090), (230, 91272), (240, 87469), (276, 76060), (345, 60848), (368, 57045), (460, 45636), (552, 38030), (690, 30424), (920, 22818), (1104, 19015), (1380, 15212), (1840, 11409), (2760, 7606), (3803, 5520)]