428664985

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1297}}^1$

素因数の和:1406

約数の個数: 48

約数和(自身を含む): 639239040

約数和(自身を除く): 210574055

約数列:

[1, 5, 7, 19, 35, 49, 71, 95, 133, 245, 355, 497, 665, 931, 1297, 1349, 2485, 3479, 4655, 6485, 6745, 9079, 9443, 17395, 24643, 45395, 47215, 63553, 66101, 92087, 123215, 172501, 317765, 330505, 460435, 644609, 862505, 1207507, 1749653, 3223045, 4512263, 6037535, 8748265, 12247571, 22561315, 61237855, 85732997, 428664985]

約数ペア:

[(1, 428664985), (5, 85732997), (7, 61237855), (19, 22561315), (35, 12247571), (49, 8748265), (71, 6037535), (95, 4512263), (133, 3223045), (245, 1749653), (355, 1207507), (497, 862505), (665, 644609), (931, 460435), (1297, 330505), (1349, 317765), (2485, 172501), (3479, 123215), (4655, 92087), (6485, 66101), (6745, 63553), (9079, 47215), (9443, 45395), (17395, 24643)]