2019999760

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{130829}}^1$

素因数の和:131035

約数の個数: 40

約数和(自身を含む): 4720869720

約数和(自身を除く): 2700869960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 130829, 261658, 523316, 654145, 1046632, 1308290, 2093264, 2616580, 5233160, 10466320, 25249997, 50499994, 100999988, 126249985, 201999976, 252499970, 403999952, 504999940, 1009999880, 2019999760]

約数ペア:

[(1, 2019999760), (2, 1009999880), (4, 504999940), (5, 403999952), (8, 252499970), (10, 201999976), (16, 126249985), (20, 100999988), (40, 50499994), (80, 25249997), (193, 10466320), (386, 5233160), (772, 2616580), (965, 2093264), (1544, 1308290), (1930, 1046632), (3088, 654145), (3860, 523316), (7720, 261658), (15440, 130829)]