280016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 40

約数和(自身を含む): 621984

約数和(自身を除く): 341968

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 43, 44, 74, 86, 88, 148, 172, 176, 296, 344, 407, 473, 592, 688, 814, 946, 1591, 1628, 1892, 3182, 3256, 3784, 6364, 6512, 7568, 12728, 17501, 25456, 35002, 70004, 140008, 280016]

約数ペア:

[(1, 280016), (2, 140008), (4, 70004), (8, 35002), (11, 25456), (16, 17501), (22, 12728), (37, 7568), (43, 6512), (44, 6364), (74, 3784), (86, 3256), (88, 3182), (148, 1892), (172, 1628), (176, 1591), (296, 946), (344, 814), (407, 688), (473, 592)]