81395808

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 240725520

約数和(自身を除く): 159329712

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 32, 39, 48, 52, 58, 78, 87, 96, 104, 116, 156, 169, 173, 174, 208, 232, 312, 338, 346, 348, 377, 416, 464, 507, 519, 624, 676, 692, 696, 754, 928, 1014, 1038, 1131, 1248, 1352, 1384, 1392, 1508, 2028, 2076, 2249, 2262, 2704, 2768, 2784, 3016, 4056, 4152, 4498, 4524, 4901, 5017, 5408, 5536, 6032, 6747, 8112, 8304, 8996, 9048, 9802, 10034, 12064, 13494, 14703, 15051, 16224, 16608, 17992, 18096, 19604, 20068, 26988, 29237, 29406, 30102, 35984, 36192, 39208, 40136, 53976, 58474, 58812, 60204, 65221, 71968, 78416, 80272, 87711, 107952, 116948, 117624, 120408, 130442, 156832, 160544, 175422, 195663, 215904, 233896, 235248, 240816, 260884, 350844, 391326, 467792, 470496, 481632, 521768, 701688, 782652, 847873, 935584, 1043536, 1403376, 1565304, 1695746, 2087072, 2543619, 2806752, 3130608, 3391492, 5087238, 6261216, 6782984, 10174476, 13565968, 20348952, 27131936, 40697904, 81395808]

約数ペア:

[(1, 81395808), (2, 40697904), (3, 27131936), (4, 20348952), (6, 13565968), (8, 10174476), (12, 6782984), (13, 6261216), (16, 5087238), (24, 3391492), (26, 3130608), (29, 2806752), (32, 2543619), (39, 2087072), (48, 1695746), (52, 1565304), (58, 1403376), (78, 1043536), (87, 935584), (96, 847873), (104, 782652), (116, 701688), (156, 521768), (169, 481632), (173, 470496), (174, 467792), (208, 391326), (232, 350844), (312, 260884), (338, 240816), (346, 235248), (348, 233896), (377, 215904), (416, 195663), (464, 175422), (507, 160544), (519, 156832), (624, 130442), (676, 120408), (692, 117624), (696, 116948), (754, 107952), (928, 87711), (1014, 80272), (1038, 78416), (1131, 71968), (1248, 65221), (1352, 60204), (1384, 58812), (1392, 58474), (1508, 53976), (2028, 40136), (2076, 39208), (2249, 36192), (2262, 35984), (2704, 30102), (2768, 29406), (2784, 29237), (3016, 26988), (4056, 20068), (4152, 19604), (4498, 18096), (4524, 17992), (4901, 16608), (5017, 16224), (5408, 15051), (5536, 14703), (6032, 13494), (6747, 12064), (8112, 10034), (8304, 9802), (8996, 9048)]