81355904

素因数分解:

$2^7\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:182

約数の個数: 128

約数和(自身を含む): 199756800

約数和(自身を除く): 118400896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 31, 32, 56, 58, 62, 64, 101, 112, 116, 124, 128, 202, 203, 217, 224, 232, 248, 404, 406, 434, 448, 464, 496, 707, 808, 812, 868, 896, 899, 928, 992, 1414, 1616, 1624, 1736, 1798, 1856, 1984, 2828, 2929, 3131, 3232, 3248, 3472, 3596, 3712, 3968, 5656, 5858, 6262, 6293, 6464, 6496, 6944, 7192, 11312, 11716, 12524, 12586, 12928, 12992, 13888, 14384, 20503, 21917, 22624, 23432, 25048, 25172, 25984, 27776, 28768, 41006, 43834, 45248, 46864, 50096, 50344, 57536, 82012, 87668, 90496, 90799, 93728, 100192, 100688, 115072, 164024, 175336, 181598, 187456, 200384, 201376, 328048, 350672, 363196, 374912, 400768, 402752, 635593, 656096, 701344, 726392, 805504, 1271186, 1312192, 1402688, 1452784, 2542372, 2624384, 2805376, 2905568, 5084744, 5811136, 10169488, 11622272, 20338976, 40677952, 81355904]

約数ペア:

[(1, 81355904), (2, 40677952), (4, 20338976), (7, 11622272), (8, 10169488), (14, 5811136), (16, 5084744), (28, 2905568), (29, 2805376), (31, 2624384), (32, 2542372), (56, 1452784), (58, 1402688), (62, 1312192), (64, 1271186), (101, 805504), (112, 726392), (116, 701344), (124, 656096), (128, 635593), (202, 402752), (203, 400768), (217, 374912), (224, 363196), (232, 350672), (248, 328048), (404, 201376), (406, 200384), (434, 187456), (448, 181598), (464, 175336), (496, 164024), (707, 115072), (808, 100688), (812, 100192), (868, 93728), (896, 90799), (899, 90496), (928, 87668), (992, 82012), (1414, 57536), (1616, 50344), (1624, 50096), (1736, 46864), (1798, 45248), (1856, 43834), (1984, 41006), (2828, 28768), (2929, 27776), (3131, 25984), (3232, 25172), (3248, 25048), (3472, 23432), (3596, 22624), (3712, 21917), (3968, 20503), (5656, 14384), (5858, 13888), (6262, 12992), (6293, 12928), (6464, 12586), (6496, 12524), (6944, 11716), (7192, 11312)]