268584784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{991}}^1\times {\mathrm{1303}}^1$

素因数の和:2315

約数の個数: 40

約数和(自身を含む): 561408512

約数和(自身を除く): 292823728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 991, 1303, 1982, 2606, 3964, 5212, 7928, 10424, 12883, 15856, 16939, 20848, 25766, 33878, 51532, 67756, 103064, 135512, 206128, 271024, 1291273, 2582546, 5165092, 10330184, 16786549, 20660368, 33573098, 67146196, 134292392, 268584784]

約数ペア:

[(1, 268584784), (2, 134292392), (4, 67146196), (8, 33573098), (13, 20660368), (16, 16786549), (26, 10330184), (52, 5165092), (104, 2582546), (208, 1291273), (991, 271024), (1303, 206128), (1982, 135512), (2606, 103064), (3964, 67756), (5212, 51532), (7928, 33878), (10424, 25766), (12883, 20848), (15856, 16939)]