21839280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90997}}^1$

素因数の和:91013

約数の個数: 40

約数和(自身を含む): 67702512

約数和(自身を除く): 45863232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90997, 181994, 272991, 363988, 454985, 545982, 727976, 909970, 1091964, 1364955, 1455952, 1819940, 2183928, 2729910, 3639880, 4367856, 5459820, 7279760, 10919640, 21839280]

約数ペア:

[(1, 21839280), (2, 10919640), (3, 7279760), (4, 5459820), (5, 4367856), (6, 3639880), (8, 2729910), (10, 2183928), (12, 1819940), (15, 1455952), (16, 1364955), (20, 1091964), (24, 909970), (30, 727976), (40, 545982), (48, 454985), (60, 363988), (80, 272991), (120, 181994), (240, 90997)]