1285500290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{143953}}^1$

素因数の和:144026

約数の個数: 32

約数和(自身を含む): 2487525120

約数和(自身を除く): 1202024830

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 470, 893, 1786, 4465, 8930, 143953, 287906, 719765, 1439530, 2735107, 5470214, 6765791, 13531582, 13675535, 27351070, 33828955, 67657910, 128550029, 257100058, 642750145, 1285500290]

約数ペア:

[(1, 1285500290), (2, 642750145), (5, 257100058), (10, 128550029), (19, 67657910), (38, 33828955), (47, 27351070), (94, 13675535), (95, 13531582), (190, 6765791), (235, 5470214), (470, 2735107), (893, 1439530), (1786, 719765), (4465, 287906), (8930, 143953)]