320890990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{33461}}^1$

素因数の和:33612

約数の個数: 32

約数和(自身を含む): 664956864

約数和(自身を除く): 344065874

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 4795, 9590, 33461, 66922, 167305, 234227, 334610, 468454, 1171135, 2342270, 4584157, 9168314, 22920785, 32089099, 45841570, 64178198, 160445495, 320890990]

約数ペア:

[(1, 320890990), (2, 160445495), (5, 64178198), (7, 45841570), (10, 32089099), (14, 22920785), (35, 9168314), (70, 4584157), (137, 2342270), (274, 1171135), (685, 468454), (959, 334610), (1370, 234227), (1918, 167305), (4795, 66922), (9590, 33461)]