90400500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{20089}}^1$

素因数の和:20114

約数の個数: 72

約数和(自身を含む): 285197640

約数和(自身を除く): 194797140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 20089, 40178, 60267, 80356, 100445, 120534, 180801, 200890, 241068, 301335, 361602, 401780, 502225, 602670, 723204, 904005, 1004450, 1205340, 1506675, 1808010, 2008900, 2511125, 3013350, 3616020, 4520025, 5022250, 6026700, 7533375, 9040050, 10044500, 15066750, 18080100, 22600125, 30133500, 45200250, 90400500]

約数ペア:

[(1, 90400500), (2, 45200250), (3, 30133500), (4, 22600125), (5, 18080100), (6, 15066750), (9, 10044500), (10, 9040050), (12, 7533375), (15, 6026700), (18, 5022250), (20, 4520025), (25, 3616020), (30, 3013350), (36, 2511125), (45, 2008900), (50, 1808010), (60, 1506675), (75, 1205340), (90, 1004450), (100, 904005), (125, 723204), (150, 602670), (180, 502225), (225, 401780), (250, 361602), (300, 301335), (375, 241068), (450, 200890), (500, 180801), (750, 120534), (900, 100445), (1125, 80356), (1500, 60267), (2250, 40178), (4500, 20089)]