205439280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{855997}}^1$

素因数の和:856013

約数の個数: 40

約数和(自身を含む): 636862512

約数和(自身を除く): 431423232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 855997, 1711994, 2567991, 3423988, 4279985, 5135982, 6847976, 8559970, 10271964, 12839955, 13695952, 17119940, 20543928, 25679910, 34239880, 41087856, 51359820, 68479760, 102719640, 205439280]

約数ペア:

[(1, 205439280), (2, 102719640), (3, 68479760), (4, 51359820), (5, 41087856), (6, 34239880), (8, 25679910), (10, 20543928), (12, 17119940), (15, 13695952), (16, 12839955), (20, 10271964), (24, 8559970), (30, 6847976), (40, 5135982), (48, 4279985), (60, 3423988), (80, 2567991), (120, 1711994), (240, 855997)]