20284420450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{388963}}^1$

素因数の和:389131

約数の個数: 48

約数和(自身を含む): 43408382400

約数和(自身を除く): 23123961950

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 149, 175, 298, 350, 745, 1043, 1490, 2086, 3725, 5215, 7450, 10430, 26075, 52150, 388963, 777926, 1944815, 2722741, 3889630, 5445482, 9724075, 13613705, 19448150, 27227410, 57955487, 68068525, 115910974, 136137050, 289777435, 405688409, 579554870, 811376818, 1448887175, 2028442045, 2897774350, 4056884090, 10142210225, 20284420450]

約数ペア:

[(1, 20284420450), (2, 10142210225), (5, 4056884090), (7, 2897774350), (10, 2028442045), (14, 1448887175), (25, 811376818), (35, 579554870), (50, 405688409), (70, 289777435), (149, 136137050), (175, 115910974), (298, 68068525), (350, 57955487), (745, 27227410), (1043, 19448150), (1490, 13613705), (2086, 9724075), (3725, 5445482), (5215, 3889630), (7450, 2722741), (10430, 1944815), (26075, 777926), (52150, 388963)]