161781568

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{577}}^1$

素因数の和:939

約数の個数: 56

約数和(自身を含む): 347357192

約数和(自身を除く): 185575624

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 337, 416, 577, 674, 832, 1154, 1348, 2308, 2696, 4381, 4616, 5392, 7501, 8762, 9232, 10784, 15002, 17524, 18464, 21568, 30004, 35048, 36928, 60008, 70096, 120016, 140192, 194449, 240032, 280384, 388898, 480064, 777796, 1555592, 2527837, 3111184, 5055674, 6222368, 10111348, 12444736, 20222696, 40445392, 80890784, 161781568]

約数ペア:

[(1, 161781568), (2, 80890784), (4, 40445392), (8, 20222696), (13, 12444736), (16, 10111348), (26, 6222368), (32, 5055674), (52, 3111184), (64, 2527837), (104, 1555592), (208, 777796), (337, 480064), (416, 388898), (577, 280384), (674, 240032), (832, 194449), (1154, 140192), (1348, 120016), (2308, 70096), (2696, 60008), (4381, 36928), (4616, 35048), (5392, 30004), (7501, 21568), (8762, 18464), (9232, 17524), (10784, 15002)]