280993405

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{1451}}^1$

素因数の和:1977

約数の個数: 32

約数和(自身を含む): 421521408

約数和(自身を除く): 140528003

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 503, 1451, 2515, 3521, 5533, 7255, 10157, 15961, 17605, 27665, 38731, 50785, 79805, 111727, 193655, 558635, 729853, 3649265, 5108971, 8028383, 25544855, 40141915, 56198681, 280993405]

約数ペア:

[(1, 280993405), (5, 56198681), (7, 40141915), (11, 25544855), (35, 8028383), (55, 5108971), (77, 3649265), (385, 729853), (503, 558635), (1451, 193655), (2515, 111727), (3521, 79805), (5533, 50785), (7255, 38731), (10157, 27665), (15961, 17605)]