19279540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 47803392

約数和(自身を除く): 28523852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 191, 196, 206, 245, 382, 412, 490, 515, 721, 764, 955, 980, 1030, 1337, 1442, 1910, 2060, 2674, 2884, 3605, 3820, 5047, 5348, 6685, 7210, 9359, 10094, 13370, 14420, 18718, 19673, 20188, 25235, 26740, 37436, 39346, 46795, 50470, 78692, 93590, 98365, 100940, 137711, 187180, 196730, 275422, 393460, 550844, 688555, 963977, 1377110, 1927954, 2754220, 3855908, 4819885, 9639770, 19279540]

約数ペア:

[(1, 19279540), (2, 9639770), (4, 4819885), (5, 3855908), (7, 2754220), (10, 1927954), (14, 1377110), (20, 963977), (28, 688555), (35, 550844), (49, 393460), (70, 275422), (98, 196730), (103, 187180), (140, 137711), (191, 100940), (196, 98365), (206, 93590), (245, 78692), (382, 50470), (412, 46795), (490, 39346), (515, 37436), (721, 26740), (764, 25235), (955, 20188), (980, 19673), (1030, 18718), (1337, 14420), (1442, 13370), (1910, 10094), (2060, 9359), (2674, 7210), (2884, 6685), (3605, 5348), (3820, 5047)]