27720045

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{641}}^1$

素因数の和:714

約数の個数: 36

約数和(自身を含む): 49725468

約数和(自身を除く): 22005423

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 641, 961, 1395, 1923, 2883, 3205, 4805, 5769, 8649, 9615, 14415, 19871, 28845, 43245, 59613, 99355, 178839, 298065, 616001, 894195, 1848003, 3080005, 5544009, 9240015, 27720045]

約数ペア:

[(1, 27720045), (3, 9240015), (5, 5544009), (9, 3080005), (15, 1848003), (31, 894195), (45, 616001), (93, 298065), (155, 178839), (279, 99355), (465, 59613), (641, 43245), (961, 28845), (1395, 19871), (1923, 14415), (2883, 9615), (3205, 8649), (4805, 5769)]