20174620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 44049600

約数和(自身を除く): 23874980

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 137, 148, 185, 199, 274, 370, 398, 548, 685, 740, 796, 995, 1370, 1990, 2740, 3980, 5069, 7363, 10138, 14726, 20276, 25345, 27263, 29452, 36815, 50690, 54526, 73630, 101380, 109052, 136315, 147260, 272630, 545260, 1008731, 2017462, 4034924, 5043655, 10087310, 20174620]

約数ペア:

[(1, 20174620), (2, 10087310), (4, 5043655), (5, 4034924), (10, 2017462), (20, 1008731), (37, 545260), (74, 272630), (137, 147260), (148, 136315), (185, 109052), (199, 101380), (274, 73630), (370, 54526), (398, 50690), (548, 36815), (685, 29452), (740, 27263), (796, 25345), (995, 20276), (1370, 14726), (1990, 10138), (2740, 7363), (3980, 5069)]