40439980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:719

約数の個数: 96

約数和(自身を含む): 106767360

約数和(自身を除く): 66327380

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 70, 76, 92, 95, 115, 133, 140, 161, 190, 230, 266, 322, 380, 437, 460, 532, 644, 661, 665, 805, 874, 1322, 1330, 1610, 1748, 2185, 2644, 2660, 3059, 3220, 3305, 4370, 4627, 6118, 6610, 8740, 9254, 12236, 12559, 13220, 15203, 15295, 18508, 23135, 25118, 30406, 30590, 46270, 50236, 60812, 61180, 62795, 76015, 87913, 92540, 106421, 125590, 152030, 175826, 212842, 251180, 288857, 304060, 351652, 425684, 439565, 532105, 577714, 879130, 1064210, 1155428, 1444285, 1758260, 2021999, 2128420, 2888570, 4043998, 5777140, 8087996, 10109995, 20219990, 40439980]

約数ペア:

[(1, 40439980), (2, 20219990), (4, 10109995), (5, 8087996), (7, 5777140), (10, 4043998), (14, 2888570), (19, 2128420), (20, 2021999), (23, 1758260), (28, 1444285), (35, 1155428), (38, 1064210), (46, 879130), (70, 577714), (76, 532105), (92, 439565), (95, 425684), (115, 351652), (133, 304060), (140, 288857), (161, 251180), (190, 212842), (230, 175826), (266, 152030), (322, 125590), (380, 106421), (437, 92540), (460, 87913), (532, 76015), (644, 62795), (661, 61180), (665, 60812), (805, 50236), (874, 46270), (1322, 30590), (1330, 30406), (1610, 25118), (1748, 23135), (2185, 18508), (2644, 15295), (2660, 15203), (3059, 13220), (3220, 12559), (3305, 12236), (4370, 9254), (4627, 8740), (6118, 6610)]