19530660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1997}}^1$

素因数の和:2172

約数の個数: 48

約数和(自身を含む): 55048896

約数和(自身を除く): 35518236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 326, 489, 652, 815, 978, 1630, 1956, 1997, 2445, 3260, 3994, 4890, 5991, 7988, 9780, 9985, 11982, 19970, 23964, 29955, 39940, 59910, 119820, 325511, 651022, 976533, 1302044, 1627555, 1953066, 3255110, 3906132, 4882665, 6510220, 9765330, 19530660]

約数ペア:

[(1, 19530660), (2, 9765330), (3, 6510220), (4, 4882665), (5, 3906132), (6, 3255110), (10, 1953066), (12, 1627555), (15, 1302044), (20, 976533), (30, 651022), (60, 325511), (163, 119820), (326, 59910), (489, 39940), (652, 29955), (815, 23964), (978, 19970), (1630, 11982), (1956, 9985), (1997, 9780), (2445, 7988), (3260, 5991), (3994, 4890)]