1521508720

素因数分解:

$2^4\times 5^1\times {\mathrm{1789}}^1\times {\mathrm{10631}}^1$

素因数の和:12433

約数の個数: 40

約数和(自身を含む): 3539818080

約数和(自身を除く): 2018309360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1789, 3578, 7156, 8945, 10631, 14312, 17890, 21262, 28624, 35780, 42524, 53155, 71560, 85048, 106310, 143120, 170096, 212620, 425240, 850480, 19018859, 38037718, 76075436, 95094295, 152150872, 190188590, 304301744, 380377180, 760754360, 1521508720]

約数ペア:

[(1, 1521508720), (2, 760754360), (4, 380377180), (5, 304301744), (8, 190188590), (10, 152150872), (16, 95094295), (20, 76075436), (40, 38037718), (80, 19018859), (1789, 850480), (3578, 425240), (7156, 212620), (8945, 170096), (10631, 143120), (14312, 106310), (17890, 85048), (21262, 71560), (28624, 53155), (35780, 42524)]