20130248

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 38811960

約数和(自身を除く): 18681712

約数列:

[1, 2, 4, 8, 53, 106, 197, 212, 241, 394, 424, 482, 788, 964, 1576, 1928, 10441, 12773, 20882, 25546, 41764, 47477, 51092, 83528, 94954, 102184, 189908, 379816, 2516281, 5032562, 10065124, 20130248]

約数ペア:

[(1, 20130248), (2, 10065124), (4, 5032562), (8, 2516281), (53, 379816), (106, 189908), (197, 102184), (212, 94954), (241, 83528), (394, 51092), (424, 47477), (482, 41764), (788, 25546), (964, 20882), (1576, 12773), (1928, 10441)]