21957840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30497}}^1$

素因数の和:30516

約数の個数: 60

約数和(自身を含む): 73744164

約数和(自身を除く): 51786324

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30497, 60994, 91491, 121988, 152485, 182982, 243976, 274473, 304970, 365964, 457455, 487952, 548946, 609940, 731928, 914910, 1097892, 1219880, 1372365, 1463856, 1829820, 2195784, 2439760, 2744730, 3659640, 4391568, 5489460, 7319280, 10978920, 21957840]

約数ペア:

[(1, 21957840), (2, 10978920), (3, 7319280), (4, 5489460), (5, 4391568), (6, 3659640), (8, 2744730), (9, 2439760), (10, 2195784), (12, 1829820), (15, 1463856), (16, 1372365), (18, 1219880), (20, 1097892), (24, 914910), (30, 731928), (36, 609940), (40, 548946), (45, 487952), (48, 457455), (60, 365964), (72, 304970), (80, 274473), (90, 243976), (120, 182982), (144, 152485), (180, 121988), (240, 91491), (360, 60994), (720, 30497)]