20657200

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1201}}^1$

素因数の和:1262

約数の個数: 60

約数和(自身を含む): 50825368

約数和(自身を除く): 30168168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1201, 1720, 2150, 2402, 3440, 4300, 4804, 6005, 8600, 9608, 12010, 17200, 19216, 24020, 30025, 48040, 51643, 60050, 96080, 103286, 120100, 206572, 240200, 258215, 413144, 480400, 516430, 826288, 1032860, 1291075, 2065720, 2582150, 4131440, 5164300, 10328600, 20657200]

約数ペア:

[(1, 20657200), (2, 10328600), (4, 5164300), (5, 4131440), (8, 2582150), (10, 2065720), (16, 1291075), (20, 1032860), (25, 826288), (40, 516430), (43, 480400), (50, 413144), (80, 258215), (86, 240200), (100, 206572), (172, 120100), (200, 103286), (215, 96080), (344, 60050), (400, 51643), (430, 48040), (688, 30025), (860, 24020), (1075, 19216), (1201, 17200), (1720, 12010), (2150, 9608), (2402, 8600), (3440, 6005), (4300, 4804)]