19696400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1201}}^1$

素因数の和:1260

約数の個数: 60

約数和(自身を含む): 48515124

約数和(自身を除く): 28818724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1201, 1640, 2050, 2402, 3280, 4100, 4804, 6005, 8200, 9608, 12010, 16400, 19216, 24020, 30025, 48040, 49241, 60050, 96080, 98482, 120100, 196964, 240200, 246205, 393928, 480400, 492410, 787856, 984820, 1231025, 1969640, 2462050, 3939280, 4924100, 9848200, 19696400]

約数ペア:

[(1, 19696400), (2, 9848200), (4, 4924100), (5, 3939280), (8, 2462050), (10, 1969640), (16, 1231025), (20, 984820), (25, 787856), (40, 492410), (41, 480400), (50, 393928), (80, 246205), (82, 240200), (100, 196964), (164, 120100), (200, 98482), (205, 96080), (328, 60050), (400, 49241), (410, 48040), (656, 30025), (820, 24020), (1025, 19216), (1201, 16400), (1640, 12010), (2050, 9608), (2402, 8200), (3280, 6005), (4100, 4804)]