19900260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110557}}^1$

素因数の和:110572

約数の個数: 36

約数和(自身を含む): 60364668

約数和(自身を除く): 40464408

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110557, 221114, 331671, 442228, 552785, 663342, 995013, 1105570, 1326684, 1658355, 1990026, 2211140, 3316710, 3980052, 4975065, 6633420, 9950130, 19900260]

約数ペア:

[(1, 19900260), (2, 9950130), (3, 6633420), (4, 4975065), (5, 3980052), (6, 3316710), (9, 2211140), (10, 1990026), (12, 1658355), (15, 1326684), (18, 1105570), (20, 995013), (30, 663342), (36, 552785), (45, 442228), (60, 331671), (90, 221114), (180, 110557)]