640679280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2669497}}^1$

素因数の和:2669513

約数の個数: 40

約数和(自身を含む): 1986106512

約数和(自身を除く): 1345427232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2669497, 5338994, 8008491, 10677988, 13347485, 16016982, 21355976, 26694970, 32033964, 40042455, 42711952, 53389940, 64067928, 80084910, 106779880, 128135856, 160169820, 213559760, 320339640, 640679280]

約数ペア:

[(1, 640679280), (2, 320339640), (3, 213559760), (4, 160169820), (5, 128135856), (6, 106779880), (8, 80084910), (10, 64067928), (12, 53389940), (15, 42711952), (16, 40042455), (20, 32033964), (24, 26694970), (30, 21355976), (40, 16016982), (48, 13347485), (60, 10677988), (80, 8008491), (120, 5338994), (240, 2669497)]