128974352

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{1381}}^1$

素因数の和:1851

約数の個数: 40

約数和(自身を含む): 269904600

約数和(自身を除く): 140930248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 449, 898, 1381, 1796, 2762, 3592, 5524, 5837, 7184, 11048, 11674, 17953, 22096, 23348, 35906, 46696, 71812, 93392, 143624, 287248, 620069, 1240138, 2480276, 4960552, 8060897, 9921104, 16121794, 32243588, 64487176, 128974352]

約数ペア:

[(1, 128974352), (2, 64487176), (4, 32243588), (8, 16121794), (13, 9921104), (16, 8060897), (26, 4960552), (52, 2480276), (104, 1240138), (208, 620069), (449, 287248), (898, 143624), (1381, 93392), (1796, 71812), (2762, 46696), (3592, 35906), (5524, 23348), (5837, 22096), (7184, 17953), (11048, 11674)]