7129940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 16329600

約数和(自身を除く): 9199660

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 647, 1102, 1294, 2204, 2588, 2755, 3235, 5510, 6470, 11020, 12293, 12940, 18763, 24586, 37526, 49172, 61465, 75052, 93815, 122930, 187630, 245860, 356497, 375260, 712994, 1425988, 1782485, 3564970, 7129940]

約数ペア:

[(1, 7129940), (2, 3564970), (4, 1782485), (5, 1425988), (10, 712994), (19, 375260), (20, 356497), (29, 245860), (38, 187630), (58, 122930), (76, 93815), (95, 75052), (116, 61465), (145, 49172), (190, 37526), (290, 24586), (380, 18763), (551, 12940), (580, 12293), (647, 11020), (1102, 6470), (1294, 5510), (2204, 3235), (2588, 2755)]