20057200

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1223}}^1$

素因数の和:1282

約数の個数: 60

約数和(自身を含む): 49403088

約数和(自身を除く): 29345888

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, 1223, 1640, 2050, 2446, 3280, 4100, 4892, 6115, 8200, 9784, 12230, 16400, 19568, 24460, 30575, 48920, 50143, 61150, 97840, 100286, 122300, 200572, 244600, 250715, 401144, 489200, 501430, 802288, 1002860, 1253575, 2005720, 2507150, 4011440, 5014300, 10028600, 20057200]

約数ペア:

[(1, 20057200), (2, 10028600), (4, 5014300), (5, 4011440), (8, 2507150), (10, 2005720), (16, 1253575), (20, 1002860), (25, 802288), (40, 501430), (41, 489200), (50, 401144), (80, 250715), (82, 244600), (100, 200572), (164, 122300), (200, 100286), (205, 97840), (328, 61150), (400, 50143), (410, 48920), (656, 30575), (820, 24460), (1025, 19568), (1223, 16400), (1640, 12230), (2050, 9784), (2446, 8200), (3280, 6115), (4100, 4892)]