28973980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{593}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 69854400

約数和(自身を除く): 40880420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 593, 698, 1186, 1396, 1745, 2372, 2443, 2965, 3490, 4151, 4886, 5930, 6980, 8302, 9772, 11860, 12215, 16604, 20755, 24430, 41510, 48860, 83020, 206957, 413914, 827828, 1034785, 1448699, 2069570, 2897398, 4139140, 5794796, 7243495, 14486990, 28973980]

約数ペア:

[(1, 28973980), (2, 14486990), (4, 7243495), (5, 5794796), (7, 4139140), (10, 2897398), (14, 2069570), (20, 1448699), (28, 1034785), (35, 827828), (70, 413914), (140, 206957), (349, 83020), (593, 48860), (698, 41510), (1186, 24430), (1396, 20755), (1745, 16604), (2372, 12215), (2443, 11860), (2965, 9772), (3490, 8302), (4151, 6980), (4886, 5930)]