20896400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:481

約数の個数: 120

約数和(自身を含む): 60888960

約数和(自身を除く): 39992560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 80, 85, 100, 112, 119, 136, 140, 170, 175, 200, 238, 272, 280, 340, 350, 400, 425, 439, 476, 560, 595, 680, 700, 850, 878, 952, 1190, 1360, 1400, 1700, 1756, 1904, 2195, 2380, 2800, 2975, 3073, 3400, 3512, 4390, 4760, 5950, 6146, 6800, 7024, 7463, 8780, 9520, 10975, 11900, 12292, 14926, 15365, 17560, 21950, 23800, 24584, 29852, 30730, 35120, 37315, 43900, 47600, 49168, 52241, 59704, 61460, 74630, 76825, 87800, 104482, 119408, 122920, 149260, 153650, 175600, 186575, 208964, 245840, 261205, 298520, 307300, 373150, 417928, 522410, 597040, 614600, 746300, 835856, 1044820, 1229200, 1306025, 1492600, 2089640, 2612050, 2985200, 4179280, 5224100, 10448200, 20896400]

約数ペア:

[(1, 20896400), (2, 10448200), (4, 5224100), (5, 4179280), (7, 2985200), (8, 2612050), (10, 2089640), (14, 1492600), (16, 1306025), (17, 1229200), (20, 1044820), (25, 835856), (28, 746300), (34, 614600), (35, 597040), (40, 522410), (50, 417928), (56, 373150), (68, 307300), (70, 298520), (80, 261205), (85, 245840), (100, 208964), (112, 186575), (119, 175600), (136, 153650), (140, 149260), (170, 122920), (175, 119408), (200, 104482), (238, 87800), (272, 76825), (280, 74630), (340, 61460), (350, 59704), (400, 52241), (425, 49168), (439, 47600), (476, 43900), (560, 37315), (595, 35120), (680, 30730), (700, 29852), (850, 24584), (878, 23800), (952, 21950), (1190, 17560), (1360, 15365), (1400, 14926), (1700, 12292), (1756, 11900), (1904, 10975), (2195, 9520), (2380, 8780), (2800, 7463), (2975, 7024), (3073, 6800), (3400, 6146), (3512, 5950), (4390, 4760)]