256746430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{28751}}^1$

素因数の和:28824

約数の個数: 32

約数和(自身を含む): 496834560

約数和(自身を除く): 240088130

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 470, 893, 1786, 4465, 8930, 28751, 57502, 143755, 287510, 546269, 1092538, 1351297, 2702594, 2731345, 5462690, 6756485, 13512970, 25674643, 51349286, 128373215, 256746430]

約数ペア:

[(1, 256746430), (2, 128373215), (5, 51349286), (10, 25674643), (19, 13512970), (38, 6756485), (47, 5462690), (94, 2731345), (95, 2702594), (190, 1351297), (235, 1092538), (470, 546269), (893, 287510), (1786, 143755), (4465, 57502), (8930, 28751)]