51649720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1876

約数の個数: 64

約数和(自身を含む): 125245440

約数和(自身を除く): 73595720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 920, 1240, 1426, 1811, 2852, 3565, 3622, 5704, 7130, 7244, 9055, 14260, 14488, 18110, 28520, 36220, 41653, 56141, 72440, 83306, 112282, 166612, 208265, 224564, 280705, 333224, 416530, 449128, 561410, 833060, 1122820, 1291243, 1666120, 2245640, 2582486, 5164972, 6456215, 10329944, 12912430, 25824860, 51649720]

約数ペア:

[(1, 51649720), (2, 25824860), (4, 12912430), (5, 10329944), (8, 6456215), (10, 5164972), (20, 2582486), (23, 2245640), (31, 1666120), (40, 1291243), (46, 1122820), (62, 833060), (92, 561410), (115, 449128), (124, 416530), (155, 333224), (184, 280705), (230, 224564), (248, 208265), (310, 166612), (460, 112282), (620, 83306), (713, 72440), (920, 56141), (1240, 41653), (1426, 36220), (1811, 28520), (2852, 18110), (3565, 14488), (3622, 14260), (5704, 9055), (7130, 7244)]