81239280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338497}}^1$

素因数の和:338513

約数の個数: 40

約数和(自身を含む): 251842512

約数和(自身を除く): 170603232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338497, 676994, 1015491, 1353988, 1692485, 2030982, 2707976, 3384970, 4061964, 5077455, 5415952, 6769940, 8123928, 10154910, 13539880, 16247856, 20309820, 27079760, 40619640, 81239280]

約数ペア:

[(1, 81239280), (2, 40619640), (3, 27079760), (4, 20309820), (5, 16247856), (6, 13539880), (8, 10154910), (10, 8123928), (12, 6769940), (15, 5415952), (16, 5077455), (20, 4061964), (24, 3384970), (30, 2707976), (40, 2030982), (48, 1692485), (60, 1353988), (80, 1015491), (120, 676994), (240, 338497)]