1318449940

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{44273}}^1$

素因数の和:45771

約数の個数: 24

約数和(自身を含む): 2770666920

約数和(自身を除く): 1452216980

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 7445, 14890, 29780, 44273, 88546, 177092, 221365, 442730, 885460, 65922497, 131844994, 263689988, 329612485, 659224970, 1318449940]

約数ペア:

[(1, 1318449940), (2, 659224970), (4, 329612485), (5, 263689988), (10, 131844994), (20, 65922497), (1489, 885460), (2978, 442730), (5956, 221365), (7445, 177092), (14890, 88546), (29780, 44273)]