20099200

素因数分解:

$2^7\times 5^2\times {\mathrm{11}}^1\times {\mathrm{571}}^1$

素因数の和:606

約数の個数: 96

約数和(自身を含む): 54259920

約数和(自身を除く): 34160720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 128, 160, 176, 200, 220, 275, 320, 352, 400, 440, 550, 571, 640, 704, 800, 880, 1100, 1142, 1408, 1600, 1760, 2200, 2284, 2855, 3200, 3520, 4400, 4568, 5710, 6281, 7040, 8800, 9136, 11420, 12562, 14275, 17600, 18272, 22840, 25124, 28550, 31405, 35200, 36544, 45680, 50248, 57100, 62810, 73088, 91360, 100496, 114200, 125620, 157025, 182720, 200992, 228400, 251240, 314050, 365440, 401984, 456800, 502480, 628100, 803968, 913600, 1004960, 1256200, 1827200, 2009920, 2512400, 4019840, 5024800, 10049600, 20099200]

約数ペア:

[(1, 20099200), (2, 10049600), (4, 5024800), (5, 4019840), (8, 2512400), (10, 2009920), (11, 1827200), (16, 1256200), (20, 1004960), (22, 913600), (25, 803968), (32, 628100), (40, 502480), (44, 456800), (50, 401984), (55, 365440), (64, 314050), (80, 251240), (88, 228400), (100, 200992), (110, 182720), (128, 157025), (160, 125620), (176, 114200), (200, 100496), (220, 91360), (275, 73088), (320, 62810), (352, 57100), (400, 50248), (440, 45680), (550, 36544), (571, 35200), (640, 31405), (704, 28550), (800, 25124), (880, 22840), (1100, 18272), (1142, 17600), (1408, 14275), (1600, 12562), (1760, 11420), (2200, 9136), (2284, 8800), (2855, 7040), (3200, 6281), (3520, 5710), (4400, 4568)]