81620864

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:479

約数の個数: 64

約数和(自身を含む): 176729280

約数和(自身を除く): 95108416

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 181, 208, 271, 362, 416, 542, 724, 832, 1084, 1448, 1664, 2168, 2353, 2896, 3523, 4336, 4706, 5792, 7046, 8672, 9412, 11584, 14092, 17344, 18824, 23168, 28184, 34688, 37648, 49051, 56368, 75296, 98102, 112736, 150592, 196204, 225472, 301184, 392408, 450944, 637663, 784816, 1275326, 1569632, 2550652, 3139264, 5101304, 6278528, 10202608, 20405216, 40810432, 81620864]

約数ペア:

[(1, 81620864), (2, 40810432), (4, 20405216), (8, 10202608), (13, 6278528), (16, 5101304), (26, 3139264), (32, 2550652), (52, 1569632), (64, 1275326), (104, 784816), (128, 637663), (181, 450944), (208, 392408), (271, 301184), (362, 225472), (416, 196204), (542, 150592), (724, 112736), (832, 98102), (1084, 75296), (1448, 56368), (1664, 49051), (2168, 37648), (2353, 34688), (2896, 28184), (3523, 23168), (4336, 18824), (4706, 17344), (5792, 14092), (7046, 11584), (8672, 9412)]