20877180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{997}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 58682400

約数和(自身を除く): 37805220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349, 698, 997, 1047, 1396, 1745, 1994, 2094, 2991, 3490, 3988, 4188, 4985, 5235, 5982, 6980, 9970, 10470, 11964, 14955, 19940, 20940, 29910, 59820, 347953, 695906, 1043859, 1391812, 1739765, 2087718, 3479530, 4175436, 5219295, 6959060, 10438590, 20877180]

約数ペア:

[(1, 20877180), (2, 10438590), (3, 6959060), (4, 5219295), (5, 4175436), (6, 3479530), (10, 2087718), (12, 1739765), (15, 1391812), (20, 1043859), (30, 695906), (60, 347953), (349, 59820), (698, 29910), (997, 20940), (1047, 19940), (1396, 14955), (1745, 11964), (1994, 10470), (2094, 9970), (2991, 6980), (3490, 5982), (3988, 5235), (4188, 4985)]