208051240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{65839}}^1$

素因数の和:65929

約数の個数: 32

約数和(自身を含む): 474048000

約数和(自身を除く): 265996760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 65839, 131678, 263356, 329195, 526712, 658390, 1316780, 2633560, 5201281, 10402562, 20805124, 26006405, 41610248, 52012810, 104025620, 208051240]

約数ペア:

[(1, 208051240), (2, 104025620), (4, 52012810), (5, 41610248), (8, 26006405), (10, 20805124), (20, 10402562), (40, 5201281), (79, 2633560), (158, 1316780), (316, 658390), (395, 526712), (632, 329195), (790, 263356), (1580, 131678), (3160, 65839)]