290988250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{647}}^1$

素因数の和:928

約数の個数: 64

約数和(自身を含む): 625936896

約数和(自身を除く): 334948646

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 257, 350, 514, 647, 875, 1285, 1294, 1750, 1799, 2570, 3235, 3598, 4529, 6425, 6470, 8995, 9058, 12850, 16175, 17990, 22645, 32125, 32350, 44975, 45290, 64250, 80875, 89950, 113225, 161750, 166279, 224875, 226450, 332558, 449750, 566125, 831395, 1132250, 1163953, 1662790, 2327906, 4156975, 5819765, 8313950, 11639530, 20784875, 29098825, 41569750, 58197650, 145494125, 290988250]

約数ペア:

[(1, 290988250), (2, 145494125), (5, 58197650), (7, 41569750), (10, 29098825), (14, 20784875), (25, 11639530), (35, 8313950), (50, 5819765), (70, 4156975), (125, 2327906), (175, 1662790), (250, 1163953), (257, 1132250), (350, 831395), (514, 566125), (647, 449750), (875, 332558), (1285, 226450), (1294, 224875), (1750, 166279), (1799, 161750), (2570, 113225), (3235, 89950), (3598, 80875), (4529, 64250), (6425, 45290), (6470, 44975), (8995, 32350), (9058, 32125), (12850, 22645), (16175, 17990)]