42687820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1079

約数の個数: 72

約数和(自身を含む): 106810704

約数和(自身を除く): 64122884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1013, 1204, 1505, 2026, 2107, 3010, 4052, 4214, 5065, 6020, 7091, 8428, 10130, 10535, 14182, 20260, 21070, 28364, 35455, 42140, 43559, 49637, 70910, 87118, 99274, 141820, 174236, 198548, 217795, 248185, 304913, 435590, 496370, 609826, 871180, 992740, 1219652, 1524565, 2134391, 3049130, 4268782, 6098260, 8537564, 10671955, 21343910, 42687820]

約数ペア:

[(1, 42687820), (2, 21343910), (4, 10671955), (5, 8537564), (7, 6098260), (10, 4268782), (14, 3049130), (20, 2134391), (28, 1524565), (35, 1219652), (43, 992740), (49, 871180), (70, 609826), (86, 496370), (98, 435590), (140, 304913), (172, 248185), (196, 217795), (215, 198548), (245, 174236), (301, 141820), (430, 99274), (490, 87118), (602, 70910), (860, 49637), (980, 43559), (1013, 42140), (1204, 35455), (1505, 28364), (2026, 21070), (2107, 20260), (3010, 14182), (4052, 10535), (4214, 10130), (5065, 8428), (6020, 7091)]