21776800

素因数分解:

$2^5\times 5^2\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:350

約数の個数: 72

約数和(自身を含む): 53809056

約数和(自身を除く): 32032256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 163, 167, 200, 326, 334, 400, 652, 668, 800, 815, 835, 1304, 1336, 1630, 1670, 2608, 2672, 3260, 3340, 4075, 4175, 5216, 5344, 6520, 6680, 8150, 8350, 13040, 13360, 16300, 16700, 26080, 26720, 27221, 32600, 33400, 54442, 65200, 66800, 108884, 130400, 133600, 136105, 217768, 272210, 435536, 544420, 680525, 871072, 1088840, 1361050, 2177680, 2722100, 4355360, 5444200, 10888400, 21776800]

約数ペア:

[(1, 21776800), (2, 10888400), (4, 5444200), (5, 4355360), (8, 2722100), (10, 2177680), (16, 1361050), (20, 1088840), (25, 871072), (32, 680525), (40, 544420), (50, 435536), (80, 272210), (100, 217768), (160, 136105), (163, 133600), (167, 130400), (200, 108884), (326, 66800), (334, 65200), (400, 54442), (652, 33400), (668, 32600), (800, 27221), (815, 26720), (835, 26080), (1304, 16700), (1336, 16300), (1630, 13360), (1670, 13040), (2608, 8350), (2672, 8150), (3260, 6680), (3340, 6520), (4075, 5344), (4175, 5216)]