809820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 2686320

約数和(自身を除く): 1876500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 409, 495, 660, 818, 990, 1227, 1636, 1980, 2045, 2454, 3681, 4090, 4499, 4908, 6135, 7362, 8180, 8998, 12270, 13497, 14724, 17996, 18405, 22495, 24540, 26994, 36810, 40491, 44990, 53988, 67485, 73620, 80982, 89980, 134970, 161964, 202455, 269940, 404910, 809820]

約数ペア:

[(1, 809820), (2, 404910), (3, 269940), (4, 202455), (5, 161964), (6, 134970), (9, 89980), (10, 80982), (11, 73620), (12, 67485), (15, 53988), (18, 44990), (20, 40491), (22, 36810), (30, 26994), (33, 24540), (36, 22495), (44, 18405), (45, 17996), (55, 14724), (60, 13497), (66, 12270), (90, 8998), (99, 8180), (110, 7362), (132, 6135), (165, 4908), (180, 4499), (198, 4090), (220, 3681), (330, 2454), (396, 2045), (409, 1980), (495, 1636), (660, 1227), (818, 990)]