291214700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{647}}^1$

素因数の和:1311

約数の個数: 72

約数和(自身を含む): 724453632

約数和(自身を除く): 433238932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 643, 647, 700, 1286, 1294, 2572, 2588, 3215, 3235, 4501, 4529, 6430, 6470, 9002, 9058, 12860, 12940, 16075, 16175, 18004, 18116, 22505, 22645, 32150, 32350, 45010, 45290, 64300, 64700, 90020, 90580, 112525, 113225, 225050, 226450, 416021, 450100, 452900, 832042, 1664084, 2080105, 2912147, 4160210, 5824294, 8320420, 10400525, 11648588, 14560735, 20801050, 29121470, 41602100, 58242940, 72803675, 145607350, 291214700]

約数ペア:

[(1, 291214700), (2, 145607350), (4, 72803675), (5, 58242940), (7, 41602100), (10, 29121470), (14, 20801050), (20, 14560735), (25, 11648588), (28, 10400525), (35, 8320420), (50, 5824294), (70, 4160210), (100, 2912147), (140, 2080105), (175, 1664084), (350, 832042), (643, 452900), (647, 450100), (700, 416021), (1286, 226450), (1294, 225050), (2572, 113225), (2588, 112525), (3215, 90580), (3235, 90020), (4501, 64700), (4529, 64300), (6430, 45290), (6470, 45010), (9002, 32350), (9058, 32150), (12860, 22645), (12940, 22505), (16075, 18116), (16175, 18004)]