639100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 1749888

約数和(自身を除く): 1110788

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 83, 100, 110, 140, 154, 166, 175, 220, 275, 308, 332, 350, 385, 415, 550, 581, 700, 770, 830, 913, 1100, 1162, 1540, 1660, 1826, 1925, 2075, 2324, 2905, 3652, 3850, 4150, 4565, 5810, 6391, 7700, 8300, 9130, 11620, 12782, 14525, 18260, 22825, 25564, 29050, 31955, 45650, 58100, 63910, 91300, 127820, 159775, 319550, 639100]

約数ペア:

[(1, 639100), (2, 319550), (4, 159775), (5, 127820), (7, 91300), (10, 63910), (11, 58100), (14, 45650), (20, 31955), (22, 29050), (25, 25564), (28, 22825), (35, 18260), (44, 14525), (50, 12782), (55, 11620), (70, 9130), (77, 8300), (83, 7700), (100, 6391), (110, 5810), (140, 4565), (154, 4150), (166, 3850), (175, 3652), (220, 2905), (275, 2324), (308, 2075), (332, 1925), (350, 1826), (385, 1660), (415, 1540), (550, 1162), (581, 1100), (700, 913), (770, 830)]