78695960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{40151}}^1$

素因数の和:40176

約数の個数: 48

約数和(自身を含む): 205979760

約数和(自身を除く): 127283800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 40151, 80302, 160604, 200755, 281057, 321208, 401510, 562114, 803020, 1124228, 1405285, 1606040, 1967399, 2248456, 2810570, 3934798, 5621140, 7869596, 9836995, 11242280, 15739192, 19673990, 39347980, 78695960]

約数ペア:

[(1, 78695960), (2, 39347980), (4, 19673990), (5, 15739192), (7, 11242280), (8, 9836995), (10, 7869596), (14, 5621140), (20, 3934798), (28, 2810570), (35, 2248456), (40, 1967399), (49, 1606040), (56, 1405285), (70, 1124228), (98, 803020), (140, 562114), (196, 401510), (245, 321208), (280, 281057), (392, 200755), (490, 160604), (980, 80302), (1960, 40151)]