20174041388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{21611}}^1$

素因数の和:21878

約数の個数: 48

約数和(自身を含む): 37905719040

約数和(自身を除く): 17731677652

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 173, 284, 346, 692, 1349, 2698, 3287, 5396, 6574, 12283, 13148, 21611, 24566, 43222, 49132, 86444, 233377, 410609, 466754, 821218, 933508, 1534381, 1642436, 3068762, 3738703, 6137524, 7477406, 14954812, 29153239, 58306478, 71035357, 116612956, 142070714, 265447913, 284141428, 530895826, 1061791652, 5043510347, 10087020694, 20174041388]

約数ペア:

[(1, 20174041388), (2, 10087020694), (4, 5043510347), (19, 1061791652), (38, 530895826), (71, 284141428), (76, 265447913), (142, 142070714), (173, 116612956), (284, 71035357), (346, 58306478), (692, 29153239), (1349, 14954812), (2698, 7477406), (3287, 6137524), (5396, 3738703), (6574, 3068762), (12283, 1642436), (13148, 1534381), (21611, 933508), (24566, 821218), (43222, 466754), (49132, 410609), (86444, 233377)]