80870990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{587}}^1\times {\mathrm{599}}^1$

素因数の和:1216

約数の個数: 32

約数和(自身を含む): 152409600

約数和(自身を除く): 71538610

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 587, 599, 1174, 1198, 2935, 2995, 5870, 5990, 13501, 13777, 27002, 27554, 67505, 68885, 135010, 137770, 351613, 703226, 1758065, 3516130, 8087099, 16174198, 40435495, 80870990]

約数ペア:

[(1, 80870990), (2, 40435495), (5, 16174198), (10, 8087099), (23, 3516130), (46, 1758065), (115, 703226), (230, 351613), (587, 137770), (599, 135010), (1174, 68885), (1198, 67505), (2935, 27554), (2995, 27002), (5870, 13777), (5990, 13501)]