640507896

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{1270849}}^1$

素因数の和:1270868

約数の個数: 48

約数和(自身を含む): 1982526000

約数和(自身を除く): 1342018104

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 1270849, 2541698, 3812547, 5083396, 7625094, 8895943, 10166792, 11437641, 15250188, 17791886, 22875282, 26687829, 30500376, 35583772, 45750564, 53375658, 71167544, 80063487, 91501128, 106751316, 160126974, 213502632, 320253948, 640507896]

約数ペア:

[(1, 640507896), (2, 320253948), (3, 213502632), (4, 160126974), (6, 106751316), (7, 91501128), (8, 80063487), (9, 71167544), (12, 53375658), (14, 45750564), (18, 35583772), (21, 30500376), (24, 26687829), (28, 22875282), (36, 17791886), (42, 15250188), (56, 11437641), (63, 10166792), (72, 8895943), (84, 7625094), (126, 5083396), (168, 3812547), (252, 2541698), (504, 1270849)]