20528400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{17107}}^1$

素因数の和:17128

約数の個数: 60

約数和(自身を含む): 65763152

約数和(自身を除く): 45234752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 600, 1200, 17107, 34214, 51321, 68428, 85535, 102642, 136856, 171070, 205284, 256605, 273712, 342140, 410568, 427675, 513210, 684280, 821136, 855350, 1026420, 1283025, 1368560, 1710700, 2052840, 2566050, 3421400, 4105680, 5132100, 6842800, 10264200, 20528400]

約数ペア:

[(1, 20528400), (2, 10264200), (3, 6842800), (4, 5132100), (5, 4105680), (6, 3421400), (8, 2566050), (10, 2052840), (12, 1710700), (15, 1368560), (16, 1283025), (20, 1026420), (24, 855350), (25, 821136), (30, 684280), (40, 513210), (48, 427675), (50, 410568), (60, 342140), (75, 273712), (80, 256605), (100, 205284), (120, 171070), (150, 136856), (200, 102642), (240, 85535), (300, 68428), (400, 51321), (600, 34214), (1200, 17107)]