20160864260

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{143249}}^1$

素因数の和:143516

約数の個数: 48

約数和(自身を含む): 43896384000

約数和(自身を除く): 23735519740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 227, 310, 454, 620, 908, 1135, 2270, 4540, 7037, 14074, 28148, 35185, 70370, 140740, 143249, 286498, 572996, 716245, 1432490, 2864980, 4440719, 8881438, 17762876, 22203595, 32517523, 44407190, 65035046, 88814380, 130070092, 162587615, 325175230, 650350460, 1008043213, 2016086426, 4032172852, 5040216065, 10080432130, 20160864260]

約数ペア:

[(1, 20160864260), (2, 10080432130), (4, 5040216065), (5, 4032172852), (10, 2016086426), (20, 1008043213), (31, 650350460), (62, 325175230), (124, 162587615), (155, 130070092), (227, 88814380), (310, 65035046), (454, 44407190), (620, 32517523), (908, 22203595), (1135, 17762876), (2270, 8881438), (4540, 4440719), (7037, 2864980), (14074, 1432490), (28148, 716245), (35185, 572996), (70370, 286498), (140740, 143249)]