81575728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2267}}^1$

素因数の和:2461

約数の個数: 40

約数和(自身を含む): 171270288

約数和(自身を除く): 89694560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 692, 1384, 2249, 2267, 2768, 4498, 4534, 8996, 9068, 17992, 18136, 29471, 35984, 36272, 58942, 117884, 235768, 392191, 471536, 784382, 1568764, 3137528, 5098483, 6275056, 10196966, 20393932, 40787864, 81575728]

約数ペア:

[(1, 81575728), (2, 40787864), (4, 20393932), (8, 10196966), (13, 6275056), (16, 5098483), (26, 3137528), (52, 1568764), (104, 784382), (173, 471536), (208, 392191), (346, 235768), (692, 117884), (1384, 58942), (2249, 36272), (2267, 35984), (2768, 29471), (4498, 18136), (4534, 17992), (8996, 9068)]