21892400

素因数分解:

$2^4\times 5^2\times {\mathrm{229}}^1\times {\mathrm{239}}^1$

素因数の和:486

約数の個数: 60

約数和(自身を含む): 53047200

約数和(自身を除く): 31154800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 229, 239, 400, 458, 478, 916, 956, 1145, 1195, 1832, 1912, 2290, 2390, 3664, 3824, 4580, 4780, 5725, 5975, 9160, 9560, 11450, 11950, 18320, 19120, 22900, 23900, 45800, 47800, 54731, 91600, 95600, 109462, 218924, 273655, 437848, 547310, 875696, 1094620, 1368275, 2189240, 2736550, 4378480, 5473100, 10946200, 21892400]

約数ペア:

[(1, 21892400), (2, 10946200), (4, 5473100), (5, 4378480), (8, 2736550), (10, 2189240), (16, 1368275), (20, 1094620), (25, 875696), (40, 547310), (50, 437848), (80, 273655), (100, 218924), (200, 109462), (229, 95600), (239, 91600), (400, 54731), (458, 47800), (478, 45800), (916, 23900), (956, 22900), (1145, 19120), (1195, 18320), (1832, 11950), (1912, 11450), (2290, 9560), (2390, 9160), (3664, 5975), (3824, 5725), (4580, 4780)]