20483600

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1249}}^1$

素因数の和:1308

約数の個数: 60

約数和(自身を含む): 50452500

約数和(自身を除く): 29968900

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, 1249, 1640, 2050, 2498, 3280, 4100, 4996, 6245, 8200, 9992, 12490, 16400, 19984, 24980, 31225, 49960, 51209, 62450, 99920, 102418, 124900, 204836, 249800, 256045, 409672, 499600, 512090, 819344, 1024180, 1280225, 2048360, 2560450, 4096720, 5120900, 10241800, 20483600]

約数ペア:

[(1, 20483600), (2, 10241800), (4, 5120900), (5, 4096720), (8, 2560450), (10, 2048360), (16, 1280225), (20, 1024180), (25, 819344), (40, 512090), (41, 499600), (50, 409672), (80, 256045), (82, 249800), (100, 204836), (164, 124900), (200, 102418), (205, 99920), (328, 62450), (400, 51209), (410, 49960), (656, 31225), (820, 24980), (1025, 19984), (1249, 16400), (1640, 12490), (2050, 9992), (2498, 8200), (3280, 6245), (4100, 4996)]