19970080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9601}}^1$

素因数の和:9629

約数の個数: 48

約数和(自身を含む): 50813784

約数和(自身を除く): 30843704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9601, 19202, 38404, 48005, 76808, 96010, 124813, 153616, 192020, 249626, 307232, 384040, 499252, 624065, 768080, 998504, 1248130, 1536160, 1997008, 2496260, 3994016, 4992520, 9985040, 19970080]

約数ペア:

[(1, 19970080), (2, 9985040), (4, 4992520), (5, 3994016), (8, 2496260), (10, 1997008), (13, 1536160), (16, 1248130), (20, 998504), (26, 768080), (32, 624065), (40, 499252), (52, 384040), (65, 307232), (80, 249626), (104, 192020), (130, 153616), (160, 124813), (208, 96010), (260, 76808), (416, 48005), (520, 38404), (1040, 19202), (2080, 9601)]