20349119600

素因数分解:

$2^4\times 5^2\times {\mathrm{1607}}^1\times {\mathrm{31657}}^1$

素因数の和:33282

約数の個数: 60

約数和(自身を含む): 48920727504

約数和(自身を除く): 28571607904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1607, 3214, 6428, 8035, 12856, 16070, 25712, 31657, 32140, 40175, 63314, 64280, 80350, 126628, 128560, 158285, 160700, 253256, 316570, 321400, 506512, 633140, 642800, 791425, 1266280, 1582850, 2532560, 3165700, 6331400, 12662800, 50872799, 101745598, 203491196, 254363995, 406982392, 508727990, 813964784, 1017455980, 1271819975, 2034911960, 2543639950, 4069823920, 5087279900, 10174559800, 20349119600]

約数ペア:

[(1, 20349119600), (2, 10174559800), (4, 5087279900), (5, 4069823920), (8, 2543639950), (10, 2034911960), (16, 1271819975), (20, 1017455980), (25, 813964784), (40, 508727990), (50, 406982392), (80, 254363995), (100, 203491196), (200, 101745598), (400, 50872799), (1607, 12662800), (3214, 6331400), (6428, 3165700), (8035, 2532560), (12856, 1582850), (16070, 1266280), (25712, 791425), (31657, 642800), (32140, 633140), (40175, 506512), (63314, 321400), (64280, 316570), (80350, 253256), (126628, 160700), (128560, 158285)]