219954645

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 388058112

約数和(自身を除く): 168103467

約数列:

[1, 3, 5, 9, 15, 45, 157, 163, 191, 471, 489, 573, 785, 815, 955, 1413, 1467, 1719, 2355, 2445, 2865, 7065, 7335, 8595, 25591, 29987, 31133, 76773, 89961, 93399, 127955, 149935, 155665, 230319, 269883, 280197, 383865, 449805, 466995, 1151595, 1349415, 1400985, 4887881, 14663643, 24439405, 43990929, 73318215, 219954645]

約数ペア:

[(1, 219954645), (3, 73318215), (5, 43990929), (9, 24439405), (15, 14663643), (45, 4887881), (157, 1400985), (163, 1349415), (191, 1151595), (471, 466995), (489, 449805), (573, 383865), (785, 280197), (815, 269883), (955, 230319), (1413, 155665), (1467, 149935), (1719, 127955), (2355, 93399), (2445, 89961), (2865, 76773), (7065, 31133), (7335, 29987), (8595, 25591)]