281682128

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193463}}^1$

素因数の和:193491

約数の個数: 40

約数和(自身を含む): 671707008

約数和(自身を除く): 390024880

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 193463, 386926, 773852, 1354241, 1547704, 2515019, 2708482, 3095408, 5030038, 5416964, 10060076, 10833928, 17605133, 20120152, 21667856, 35210266, 40240304, 70420532, 140841064, 281682128]

約数ペア:

[(1, 281682128), (2, 140841064), (4, 70420532), (7, 40240304), (8, 35210266), (13, 21667856), (14, 20120152), (16, 17605133), (26, 10833928), (28, 10060076), (52, 5416964), (56, 5030038), (91, 3095408), (104, 2708482), (112, 2515019), (182, 1547704), (208, 1354241), (364, 773852), (728, 386926), (1456, 193463)]