664453916

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^3\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 72

約数和(自身を含む): 1411023600

約数和(自身を除く): 746569684

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 139, 196, 203, 278, 406, 556, 812, 841, 973, 1421, 1682, 1946, 2842, 3364, 3892, 4031, 5684, 5887, 6811, 8062, 11774, 13622, 16124, 23548, 24389, 27244, 28217, 41209, 48778, 56434, 82418, 97556, 112868, 116899, 164836, 170723, 197519, 233798, 341446, 395038, 467596, 682892, 790076, 818293, 1195061, 1636586, 2390122, 3273172, 3390071, 4780244, 5728051, 6780142, 11456102, 13560284, 22912204, 23730497, 47460994, 94921988, 166113479, 332226958, 664453916]

約数ペア:

[(1, 664453916), (2, 332226958), (4, 166113479), (7, 94921988), (14, 47460994), (28, 23730497), (29, 22912204), (49, 13560284), (58, 11456102), (98, 6780142), (116, 5728051), (139, 4780244), (196, 3390071), (203, 3273172), (278, 2390122), (406, 1636586), (556, 1195061), (812, 818293), (841, 790076), (973, 682892), (1421, 467596), (1682, 395038), (1946, 341446), (2842, 233798), (3364, 197519), (3892, 170723), (4031, 164836), (5684, 116899), (5887, 112868), (6811, 97556), (8062, 82418), (11774, 56434), (13622, 48778), (16124, 41209), (23548, 28217), (24389, 27244)]