31193140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1997}}^1$

素因数の和:2088

約数の個数: 48

約数和(自身を含む): 72503424

約数和(自身を除く): 41310284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 1997, 3124, 3905, 3994, 7810, 7988, 9985, 15620, 19970, 21967, 39940, 43934, 87868, 109835, 141787, 219670, 283574, 439340, 567148, 708935, 1417870, 1559657, 2835740, 3119314, 6238628, 7798285, 15596570, 31193140]

約数ペア:

[(1, 31193140), (2, 15596570), (4, 7798285), (5, 6238628), (10, 3119314), (11, 2835740), (20, 1559657), (22, 1417870), (44, 708935), (55, 567148), (71, 439340), (110, 283574), (142, 219670), (220, 141787), (284, 109835), (355, 87868), (710, 43934), (781, 39940), (1420, 21967), (1562, 19970), (1997, 15620), (3124, 9985), (3905, 7988), (3994, 7810)]