320401820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{1213}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 690173568

約数和(自身を除く): 369771748

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 281, 470, 562, 940, 1124, 1213, 1405, 2426, 2810, 4852, 5620, 6065, 12130, 13207, 24260, 26414, 52828, 57011, 66035, 114022, 132070, 228044, 264140, 285055, 340853, 570110, 681706, 1140220, 1363412, 1704265, 3408530, 6817060, 16020091, 32040182, 64080364, 80100455, 160200910, 320401820]

約数ペア:

[(1, 320401820), (2, 160200910), (4, 80100455), (5, 64080364), (10, 32040182), (20, 16020091), (47, 6817060), (94, 3408530), (188, 1704265), (235, 1363412), (281, 1140220), (470, 681706), (562, 570110), (940, 340853), (1124, 285055), (1213, 264140), (1405, 228044), (2426, 132070), (2810, 114022), (4852, 66035), (5620, 57011), (6065, 52828), (12130, 26414), (13207, 24260)]