128855552

素因数分解:

$2^9\times 7^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:411

約数の個数: 80

約数和(自身を含む): 297406560

約数和(自身を除く): 168551008

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 157, 224, 229, 256, 314, 448, 458, 512, 628, 896, 916, 1099, 1256, 1603, 1792, 1832, 2198, 2512, 3206, 3584, 3664, 4396, 5024, 6412, 7328, 8792, 10048, 12824, 14656, 17584, 20096, 25648, 29312, 35168, 35953, 40192, 51296, 58624, 70336, 71906, 80384, 102592, 117248, 140672, 143812, 205184, 251671, 281344, 287624, 410368, 503342, 562688, 575248, 820736, 1006684, 1150496, 2013368, 2300992, 4026736, 4601984, 8053472, 9203968, 16106944, 18407936, 32213888, 64427776, 128855552]

約数ペア:

[(1, 128855552), (2, 64427776), (4, 32213888), (7, 18407936), (8, 16106944), (14, 9203968), (16, 8053472), (28, 4601984), (32, 4026736), (56, 2300992), (64, 2013368), (112, 1150496), (128, 1006684), (157, 820736), (224, 575248), (229, 562688), (256, 503342), (314, 410368), (448, 287624), (458, 281344), (512, 251671), (628, 205184), (896, 143812), (916, 140672), (1099, 117248), (1256, 102592), (1603, 80384), (1792, 71906), (1832, 70336), (2198, 58624), (2512, 51296), (3206, 40192), (3584, 35953), (3664, 35168), (4396, 29312), (5024, 25648), (6412, 20096), (7328, 17584), (8792, 14656), (10048, 12824)]