51687140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{541}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 115550064

約数和(自身を除く): 63862924

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 281, 340, 541, 562, 1082, 1124, 1405, 2164, 2705, 2810, 4777, 5410, 5620, 9197, 9554, 10820, 18394, 19108, 23885, 36788, 45985, 47770, 91970, 95540, 152021, 183940, 304042, 608084, 760105, 1520210, 2584357, 3040420, 5168714, 10337428, 12921785, 25843570, 51687140]

約数ペア:

[(1, 51687140), (2, 25843570), (4, 12921785), (5, 10337428), (10, 5168714), (17, 3040420), (20, 2584357), (34, 1520210), (68, 760105), (85, 608084), (170, 304042), (281, 183940), (340, 152021), (541, 95540), (562, 91970), (1082, 47770), (1124, 45985), (1405, 36788), (2164, 23885), (2705, 19108), (2810, 18394), (4777, 10820), (5410, 9554), (5620, 9197)]