28097720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4363}}^1$

素因数の和:4404

約数の個数: 64

約数和(自身を含む): 75409920

約数和(自身を除く): 47312200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 4363, 6440, 8726, 17452, 21815, 30541, 34904, 43630, 61082, 87260, 100349, 122164, 152705, 174520, 200698, 244328, 305410, 401396, 501745, 610820, 702443, 802792, 1003490, 1221640, 1404886, 2006980, 2809772, 3512215, 4013960, 5619544, 7024430, 14048860, 28097720]

約数ペア:

[(1, 28097720), (2, 14048860), (4, 7024430), (5, 5619544), (7, 4013960), (8, 3512215), (10, 2809772), (14, 2006980), (20, 1404886), (23, 1221640), (28, 1003490), (35, 802792), (40, 702443), (46, 610820), (56, 501745), (70, 401396), (92, 305410), (115, 244328), (140, 200698), (161, 174520), (184, 152705), (230, 122164), (280, 100349), (322, 87260), (460, 61082), (644, 43630), (805, 34904), (920, 30541), (1288, 21815), (1610, 17452), (3220, 8726), (4363, 6440)]