19675240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 48177360

約数和(自身を除く): 28502120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 241, 260, 314, 482, 520, 628, 785, 964, 1205, 1256, 1570, 1928, 2041, 2410, 3133, 3140, 4082, 4820, 6266, 6280, 8164, 9640, 10205, 12532, 15665, 16328, 20410, 25064, 31330, 37837, 40820, 62660, 75674, 81640, 125320, 151348, 189185, 302696, 378370, 491881, 756740, 983762, 1513480, 1967524, 2459405, 3935048, 4918810, 9837620, 19675240]

約数ペア:

[(1, 19675240), (2, 9837620), (4, 4918810), (5, 3935048), (8, 2459405), (10, 1967524), (13, 1513480), (20, 983762), (26, 756740), (40, 491881), (52, 378370), (65, 302696), (104, 189185), (130, 151348), (157, 125320), (241, 81640), (260, 75674), (314, 62660), (482, 40820), (520, 37837), (628, 31330), (785, 25064), (964, 20410), (1205, 16328), (1256, 15665), (1570, 12532), (1928, 10205), (2041, 9640), (2410, 8164), (3133, 6280), (3140, 6266), (4082, 4820)]