81252488

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 164989440

約数和(自身を除く): 83736952

約数列:

[1, 2, 4, 8, 31, 41, 61, 62, 82, 122, 124, 131, 164, 244, 248, 262, 328, 488, 524, 1048, 1271, 1891, 2501, 2542, 3782, 4061, 5002, 5084, 5371, 7564, 7991, 8122, 10004, 10168, 10742, 15128, 15982, 16244, 20008, 21484, 31964, 32488, 42968, 63928, 77531, 155062, 166501, 247721, 310124, 327631, 333002, 495442, 620248, 655262, 666004, 990884, 1310524, 1332008, 1981768, 2621048, 10156561, 20313122, 40626244, 81252488]

約数ペア:

[(1, 81252488), (2, 40626244), (4, 20313122), (8, 10156561), (31, 2621048), (41, 1981768), (61, 1332008), (62, 1310524), (82, 990884), (122, 666004), (124, 655262), (131, 620248), (164, 495442), (244, 333002), (248, 327631), (262, 310124), (328, 247721), (488, 166501), (524, 155062), (1048, 77531), (1271, 63928), (1891, 42968), (2501, 32488), (2542, 31964), (3782, 21484), (4061, 20008), (5002, 16244), (5084, 15982), (5371, 15128), (7564, 10742), (7991, 10168), (8122, 10004)]