71828128

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 72

約数和(自身を含む): 156058812

約数和(自身を除く): 84230684

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 58, 68, 116, 136, 157, 232, 272, 314, 464, 493, 544, 628, 841, 928, 986, 1256, 1682, 1972, 2512, 2669, 3364, 3944, 4553, 5024, 5338, 6728, 7888, 9106, 10676, 13456, 14297, 15776, 18212, 21352, 26912, 28594, 36424, 42704, 57188, 72848, 77401, 85408, 114376, 132037, 145696, 154802, 228752, 264074, 309604, 457504, 528148, 619208, 1056296, 1238416, 2112592, 2244629, 2476832, 4225184, 4489258, 8978516, 17957032, 35914064, 71828128]

約数ペア:

[(1, 71828128), (2, 35914064), (4, 17957032), (8, 8978516), (16, 4489258), (17, 4225184), (29, 2476832), (32, 2244629), (34, 2112592), (58, 1238416), (68, 1056296), (116, 619208), (136, 528148), (157, 457504), (232, 309604), (272, 264074), (314, 228752), (464, 154802), (493, 145696), (544, 132037), (628, 114376), (841, 85408), (928, 77401), (986, 72848), (1256, 57188), (1682, 42704), (1972, 36424), (2512, 28594), (2669, 26912), (3364, 21352), (3944, 18212), (4553, 15776), (5024, 14297), (5338, 13456), (6728, 10676), (7888, 9106)]