20131781180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{882199}}^1$

素因数の和:882378

約数の個数: 48

約数和(自身を含む): 48612748800

約数和(自身を除く): 28480967620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1630, 2282, 3260, 4564, 5705, 11410, 22820, 882199, 1764398, 3528796, 4410995, 6175393, 8821990, 12350786, 17643980, 24701572, 30876965, 61753930, 123507860, 143798437, 287596874, 575193748, 718992185, 1006589059, 1437984370, 2013178118, 2875968740, 4026356236, 5032945295, 10065890590, 20131781180]

約数ペア:

[(1, 20131781180), (2, 10065890590), (4, 5032945295), (5, 4026356236), (7, 2875968740), (10, 2013178118), (14, 1437984370), (20, 1006589059), (28, 718992185), (35, 575193748), (70, 287596874), (140, 143798437), (163, 123507860), (326, 61753930), (652, 30876965), (815, 24701572), (1141, 17643980), (1630, 12350786), (2282, 8821990), (3260, 6175393), (4564, 4410995), (5705, 3528796), (11410, 1764398), (22820, 882199)]