163417960

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{9479}}^1$

素因数の和:9921

約数の個数: 32

約数和(自身を含む): 368582400

約数和(自身を除く): 205164440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 8620, 9479, 17240, 18958, 37916, 47395, 75832, 94790, 189580, 379160, 4085449, 8170898, 16341796, 20427245, 32683592, 40854490, 81708980, 163417960]

約数ペア:

[(1, 163417960), (2, 81708980), (4, 40854490), (5, 32683592), (8, 20427245), (10, 16341796), (20, 8170898), (40, 4085449), (431, 379160), (862, 189580), (1724, 94790), (2155, 75832), (3448, 47395), (4310, 37916), (8620, 18958), (9479, 17240)]