251980288

素因数分解:

$2^9\times 7^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:613

約数の個数: 80

約数和(自身を含む): 580212864

約数和(自身を除く): 328232576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 167, 224, 256, 334, 421, 448, 512, 668, 842, 896, 1169, 1336, 1684, 1792, 2338, 2672, 2947, 3368, 3584, 4676, 5344, 5894, 6736, 9352, 10688, 11788, 13472, 18704, 21376, 23576, 26944, 37408, 42752, 47152, 53888, 70307, 74816, 85504, 94304, 107776, 140614, 149632, 188608, 215552, 281228, 299264, 377216, 492149, 562456, 598528, 754432, 984298, 1124912, 1508864, 1968596, 2249824, 3937192, 4499648, 7874384, 8999296, 15748768, 17998592, 31497536, 35997184, 62995072, 125990144, 251980288]

約数ペア:

[(1, 251980288), (2, 125990144), (4, 62995072), (7, 35997184), (8, 31497536), (14, 17998592), (16, 15748768), (28, 8999296), (32, 7874384), (56, 4499648), (64, 3937192), (112, 2249824), (128, 1968596), (167, 1508864), (224, 1124912), (256, 984298), (334, 754432), (421, 598528), (448, 562456), (512, 492149), (668, 377216), (842, 299264), (896, 281228), (1169, 215552), (1336, 188608), (1684, 149632), (1792, 140614), (2338, 107776), (2672, 94304), (2947, 85504), (3368, 74816), (3584, 70307), (4676, 53888), (5344, 47152), (5894, 42752), (6736, 37408), (9352, 26944), (10688, 23576), (11788, 21376), (13472, 18704)]