11999820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{28571}}^1$

素因数の和:28590

約数の個数: 48

約数和(自身を含む): 38400768

約数和(自身を除く): 26400948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 28571, 57142, 85713, 114284, 142855, 171426, 199997, 285710, 342852, 399994, 428565, 571420, 599991, 799988, 857130, 999985, 1199982, 1714260, 1999970, 2399964, 2999955, 3999940, 5999910, 11999820]

約数ペア:

[(1, 11999820), (2, 5999910), (3, 3999940), (4, 2999955), (5, 2399964), (6, 1999970), (7, 1714260), (10, 1199982), (12, 999985), (14, 857130), (15, 799988), (20, 599991), (21, 571420), (28, 428565), (30, 399994), (35, 342852), (42, 285710), (60, 199997), (70, 171426), (84, 142855), (105, 114284), (140, 85713), (210, 57142), (420, 28571)]