28246120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{359}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 73094400

約数和(自身を除く): 44848280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 359, 562, 718, 1124, 1405, 1436, 1795, 1967, 2248, 2513, 2810, 2872, 3590, 3934, 5026, 5620, 7180, 7868, 9835, 10052, 11240, 12565, 14360, 15736, 19670, 20104, 25130, 39340, 50260, 78680, 100520, 100879, 201758, 403516, 504395, 706153, 807032, 1008790, 1412306, 2017580, 2824612, 3530765, 4035160, 5649224, 7061530, 14123060, 28246120]

約数ペア:

[(1, 28246120), (2, 14123060), (4, 7061530), (5, 5649224), (7, 4035160), (8, 3530765), (10, 2824612), (14, 2017580), (20, 1412306), (28, 1008790), (35, 807032), (40, 706153), (56, 504395), (70, 403516), (140, 201758), (280, 100879), (281, 100520), (359, 78680), (562, 50260), (718, 39340), (1124, 25130), (1405, 20104), (1436, 19670), (1795, 15736), (1967, 14360), (2248, 12565), (2513, 11240), (2810, 10052), (2872, 9835), (3590, 7868), (3934, 7180), (5026, 5620)]