21646400

素因数分解:

$2^6\times 5^2\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:268

約数の個数: 84

約数和(自身を含む): 54236112

約数和(自身を除く): 32589712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 83, 100, 160, 163, 166, 200, 320, 326, 332, 400, 415, 652, 664, 800, 815, 830, 1304, 1328, 1600, 1630, 1660, 2075, 2608, 2656, 3260, 3320, 4075, 4150, 5216, 5312, 6520, 6640, 8150, 8300, 10432, 13040, 13280, 13529, 16300, 16600, 26080, 26560, 27058, 32600, 33200, 52160, 54116, 65200, 66400, 67645, 108232, 130400, 132800, 135290, 216464, 260800, 270580, 338225, 432928, 541160, 676450, 865856, 1082320, 1352900, 2164640, 2705800, 4329280, 5411600, 10823200, 21646400]

約数ペア:

[(1, 21646400), (2, 10823200), (4, 5411600), (5, 4329280), (8, 2705800), (10, 2164640), (16, 1352900), (20, 1082320), (25, 865856), (32, 676450), (40, 541160), (50, 432928), (64, 338225), (80, 270580), (83, 260800), (100, 216464), (160, 135290), (163, 132800), (166, 130400), (200, 108232), (320, 67645), (326, 66400), (332, 65200), (400, 54116), (415, 52160), (652, 33200), (664, 32600), (800, 27058), (815, 26560), (830, 26080), (1304, 16600), (1328, 16300), (1600, 13529), (1630, 13280), (1660, 13040), (2075, 10432), (2608, 8300), (2656, 8150), (3260, 6640), (3320, 6520), (4075, 5312), (4150, 5216)]