318206025

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{19919}}^1$

素因数の和:20006

約数の個数: 36

約数和(自身を含む): 577998720

約数和(自身を除く): 259792695

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1775, 3195, 5325, 15975, 19919, 59757, 99595, 179271, 298785, 497975, 896355, 1414249, 1493925, 4242747, 4481775, 7071245, 12728241, 21213735, 35356225, 63641205, 106068675, 318206025]

約数ペア:

[(1, 318206025), (3, 106068675), (5, 63641205), (9, 35356225), (15, 21213735), (25, 12728241), (45, 7071245), (71, 4481775), (75, 4242747), (213, 1493925), (225, 1414249), (355, 896355), (639, 497975), (1065, 298785), (1775, 179271), (3195, 99595), (5325, 59757), (15975, 19919)]