18055520

素因数分解:

$2^5\times 5^1\times 7^4\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 120

約数和(自身を含む): 50821344

約数和(自身を除く): 32765824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 49, 56, 70, 80, 94, 98, 112, 140, 160, 188, 196, 224, 235, 245, 280, 329, 343, 376, 392, 470, 490, 560, 658, 686, 752, 784, 940, 980, 1120, 1316, 1372, 1504, 1568, 1645, 1715, 1880, 1960, 2303, 2401, 2632, 2744, 3290, 3430, 3760, 3920, 4606, 4802, 5264, 5488, 6580, 6860, 7520, 7840, 9212, 9604, 10528, 10976, 11515, 12005, 13160, 13720, 16121, 18424, 19208, 23030, 24010, 26320, 27440, 32242, 36848, 38416, 46060, 48020, 52640, 54880, 64484, 73696, 76832, 80605, 92120, 96040, 112847, 128968, 161210, 184240, 192080, 225694, 257936, 322420, 368480, 384160, 451388, 515872, 564235, 644840, 902776, 1128470, 1289680, 1805552, 2256940, 2579360, 3611104, 4513880, 9027760, 18055520]

約数ペア:

[(1, 18055520), (2, 9027760), (4, 4513880), (5, 3611104), (7, 2579360), (8, 2256940), (10, 1805552), (14, 1289680), (16, 1128470), (20, 902776), (28, 644840), (32, 564235), (35, 515872), (40, 451388), (47, 384160), (49, 368480), (56, 322420), (70, 257936), (80, 225694), (94, 192080), (98, 184240), (112, 161210), (140, 128968), (160, 112847), (188, 96040), (196, 92120), (224, 80605), (235, 76832), (245, 73696), (280, 64484), (329, 54880), (343, 52640), (376, 48020), (392, 46060), (470, 38416), (490, 36848), (560, 32242), (658, 27440), (686, 26320), (752, 24010), (784, 23030), (940, 19208), (980, 18424), (1120, 16121), (1316, 13720), (1372, 13160), (1504, 12005), (1568, 11515), (1645, 10976), (1715, 10528), (1880, 9604), (1960, 9212), (2303, 7840), (2401, 7520), (2632, 6860), (2744, 6580), (3290, 5488), (3430, 5264), (3760, 4802), (3920, 4606)]