261672016

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{241}}^1\times {\mathrm{859}}^1$

素因数の和:1187

約数の個数: 40

約数和(自身を含む): 516137600

約数和(自身を除く): 254465584

約数列:

[1, 2, 4, 8, 16, 79, 158, 241, 316, 482, 632, 859, 964, 1264, 1718, 1928, 3436, 3856, 6872, 13744, 19039, 38078, 67861, 76156, 135722, 152312, 207019, 271444, 304624, 414038, 542888, 828076, 1085776, 1656152, 3312304, 16354501, 32709002, 65418004, 130836008, 261672016]

約数ペア:

[(1, 261672016), (2, 130836008), (4, 65418004), (8, 32709002), (16, 16354501), (79, 3312304), (158, 1656152), (241, 1085776), (316, 828076), (482, 542888), (632, 414038), (859, 304624), (964, 271444), (1264, 207019), (1718, 152312), (1928, 135722), (3436, 76156), (3856, 67861), (6872, 38078), (13744, 19039)]