666731840

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{122561}}^1$

素因数の和:122595

約数の個数: 56

約数和(自身を含む): 1681060392

約数和(自身を除く): 1014328552

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5440, 122561, 245122, 490244, 612805, 980488, 1225610, 1960976, 2083537, 2451220, 3921952, 4167074, 4902440, 7843904, 8334148, 9804880, 10417685, 16668296, 19609760, 20835370, 33336592, 39219520, 41670740, 66673184, 83341480, 133346368, 166682960, 333365920, 666731840]

約数ペア:

[(1, 666731840), (2, 333365920), (4, 166682960), (5, 133346368), (8, 83341480), (10, 66673184), (16, 41670740), (17, 39219520), (20, 33336592), (32, 20835370), (34, 19609760), (40, 16668296), (64, 10417685), (68, 9804880), (80, 8334148), (85, 7843904), (136, 4902440), (160, 4167074), (170, 3921952), (272, 2451220), (320, 2083537), (340, 1960976), (544, 1225610), (680, 980488), (1088, 612805), (1360, 490244), (2720, 245122), (5440, 122561)]