19396130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 39528000

約数和(自身を除く): 20131870

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 169, 230, 299, 338, 499, 598, 845, 998, 1495, 1690, 2495, 2990, 3887, 4990, 6487, 7774, 11477, 12974, 19435, 22954, 32435, 38870, 57385, 64870, 84331, 114770, 149201, 168662, 298402, 421655, 746005, 843310, 1492010, 1939613, 3879226, 9698065, 19396130]

約数ペア:

[(1, 19396130), (2, 9698065), (5, 3879226), (10, 1939613), (13, 1492010), (23, 843310), (26, 746005), (46, 421655), (65, 298402), (115, 168662), (130, 149201), (169, 114770), (230, 84331), (299, 64870), (338, 57385), (499, 38870), (598, 32435), (845, 22954), (998, 19435), (1495, 12974), (1690, 11477), (2495, 7774), (2990, 6487), (3887, 4990)]