90805540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1321}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 218542464

約数和(自身を除く): 127736924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1321, 1964, 2455, 2642, 3437, 4910, 5284, 6605, 6874, 9247, 9820, 13210, 13748, 17185, 18494, 26420, 34370, 36988, 46235, 68740, 92470, 184940, 648611, 1297222, 2594444, 3243055, 4540277, 6486110, 9080554, 12972220, 18161108, 22701385, 45402770, 90805540]

約数ペア:

[(1, 90805540), (2, 45402770), (4, 22701385), (5, 18161108), (7, 12972220), (10, 9080554), (14, 6486110), (20, 4540277), (28, 3243055), (35, 2594444), (70, 1297222), (140, 648611), (491, 184940), (982, 92470), (1321, 68740), (1964, 46235), (2455, 36988), (2642, 34370), (3437, 26420), (4910, 18494), (5284, 17185), (6605, 13748), (6874, 13210), (9247, 9820)]