640202556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{2237}}^1\times {\mathrm{3407}}^1$

素因数の和:5658

約数の個数: 48

約数和(自身を含む): 1708471296

約数和(自身を除く): 1068268740

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 2237, 3407, 4474, 6711, 6814, 8948, 10221, 13422, 13628, 15659, 20442, 23849, 26844, 31318, 40884, 46977, 47698, 62636, 71547, 93954, 95396, 143094, 187908, 286188, 7621459, 15242918, 22864377, 30485836, 45728754, 53350213, 91457508, 106700426, 160050639, 213400852, 320101278, 640202556]

約数ペア:

[(1, 640202556), (2, 320101278), (3, 213400852), (4, 160050639), (6, 106700426), (7, 91457508), (12, 53350213), (14, 45728754), (21, 30485836), (28, 22864377), (42, 15242918), (84, 7621459), (2237, 286188), (3407, 187908), (4474, 143094), (6711, 95396), (6814, 93954), (8948, 71547), (10221, 62636), (13422, 47698), (13628, 46977), (15659, 40884), (20442, 31318), (23849, 26844)]