19979730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{73999}}^1$

素因数の和:74015

約数の個数: 32

約数和(自身を含む): 53280000

約数和(自身を除く): 33300270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 73999, 147998, 221997, 369995, 443994, 665991, 739990, 1109985, 1331982, 1997973, 2219970, 3329955, 3995946, 6659910, 9989865, 19979730]

約数ペア:

[(1, 19979730), (2, 9989865), (3, 6659910), (5, 3995946), (6, 3329955), (9, 2219970), (10, 1997973), (15, 1331982), (18, 1109985), (27, 739990), (30, 665991), (45, 443994), (54, 369995), (90, 221997), (135, 147998), (270, 73999)]