208251520

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4583}}^1$

素因数の和:4673

約数の個数: 64

約数和(自身を含む): 504973440

約数和(自身を除く): 296721920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 2272, 2840, 4544, 4583, 5680, 9088, 9166, 11360, 18332, 22720, 22915, 36664, 45440, 45830, 73328, 91660, 146656, 183320, 293312, 325393, 366640, 586624, 650786, 733280, 1301572, 1466560, 1626965, 2603144, 2933120, 3253930, 5206288, 6507860, 10412576, 13015720, 20825152, 26031440, 41650304, 52062880, 104125760, 208251520]

約数ペア:

[(1, 208251520), (2, 104125760), (4, 52062880), (5, 41650304), (8, 26031440), (10, 20825152), (16, 13015720), (20, 10412576), (32, 6507860), (40, 5206288), (64, 3253930), (71, 2933120), (80, 2603144), (128, 1626965), (142, 1466560), (160, 1301572), (284, 733280), (320, 650786), (355, 586624), (568, 366640), (640, 325393), (710, 293312), (1136, 183320), (1420, 146656), (2272, 91660), (2840, 73328), (4544, 45830), (4583, 45440), (5680, 36664), (9088, 22915), (9166, 22720), (11360, 18332)]