281131808

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{1697}}^1$

素因数の和:1905

約数の個数: 48

約数和(自身を含む): 575092224

約数和(自身を除く): 293960416

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 167, 248, 334, 496, 668, 992, 1336, 1697, 2672, 3394, 5177, 5344, 6788, 10354, 13576, 20708, 27152, 41416, 52607, 54304, 82832, 105214, 165664, 210428, 283399, 420856, 566798, 841712, 1133596, 1683424, 2267192, 4534384, 8785369, 9068768, 17570738, 35141476, 70282952, 140565904, 281131808]

約数ペア:

[(1, 281131808), (2, 140565904), (4, 70282952), (8, 35141476), (16, 17570738), (31, 9068768), (32, 8785369), (62, 4534384), (124, 2267192), (167, 1683424), (248, 1133596), (334, 841712), (496, 566798), (668, 420856), (992, 283399), (1336, 210428), (1697, 165664), (2672, 105214), (3394, 82832), (5177, 54304), (5344, 52607), (6788, 41416), (10354, 27152), (13576, 20708)]