20196604820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{363379}}^1$

素因数の和:363792

約数の個数: 48

約数和(自身を含む): 48594080640

約数和(自身を除く): 28397475820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1588, 1985, 2779, 3970, 5558, 7940, 11116, 13895, 27790, 55580, 363379, 726758, 1453516, 1816895, 2543653, 3633790, 5087306, 7267580, 10174612, 12718265, 25436530, 50873060, 144261463, 288522926, 577045852, 721307315, 1009830241, 1442614630, 2019660482, 2885229260, 4039320964, 5049151205, 10098302410, 20196604820]

約数ペア:

[(1, 20196604820), (2, 10098302410), (4, 5049151205), (5, 4039320964), (7, 2885229260), (10, 2019660482), (14, 1442614630), (20, 1009830241), (28, 721307315), (35, 577045852), (70, 288522926), (140, 144261463), (397, 50873060), (794, 25436530), (1588, 12718265), (1985, 10174612), (2779, 7267580), (3970, 5087306), (5558, 3633790), (7940, 2543653), (11116, 1816895), (13895, 1453516), (27790, 726758), (55580, 363379)]