68667800

素因数分解:

$2^3\times 5^2\times {\mathrm{521}}^1\times {\mathrm{659}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 160201800

約数和(自身を除く): 91534000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 521, 659, 1042, 1318, 2084, 2605, 2636, 3295, 4168, 5210, 5272, 6590, 10420, 13025, 13180, 16475, 20840, 26050, 26360, 32950, 52100, 65900, 104200, 131800, 343339, 686678, 1373356, 1716695, 2746712, 3433390, 6866780, 8583475, 13733560, 17166950, 34333900, 68667800]

約数ペア:

[(1, 68667800), (2, 34333900), (4, 17166950), (5, 13733560), (8, 8583475), (10, 6866780), (20, 3433390), (25, 2746712), (40, 1716695), (50, 1373356), (100, 686678), (200, 343339), (521, 131800), (659, 104200), (1042, 65900), (1318, 52100), (2084, 32950), (2605, 26360), (2636, 26050), (3295, 20840), (4168, 16475), (5210, 13180), (5272, 13025), (6590, 10420)]