30945800

素因数分解:

$2^3\times 5^2\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 72316800

約数和(自身を除く): 41371000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 359, 431, 718, 862, 1436, 1724, 1795, 2155, 2872, 3448, 3590, 4310, 7180, 8620, 8975, 10775, 14360, 17240, 17950, 21550, 35900, 43100, 71800, 86200, 154729, 309458, 618916, 773645, 1237832, 1547290, 3094580, 3868225, 6189160, 7736450, 15472900, 30945800]

約数ペア:

[(1, 30945800), (2, 15472900), (4, 7736450), (5, 6189160), (8, 3868225), (10, 3094580), (20, 1547290), (25, 1237832), (40, 773645), (50, 618916), (100, 309458), (200, 154729), (359, 86200), (431, 71800), (718, 43100), (862, 35900), (1436, 21550), (1724, 17950), (1795, 17240), (2155, 14360), (2872, 10775), (3448, 8975), (3590, 8620), (4310, 7180)]