90391930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1223}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 171849600

約数和(自身を除く): 81457670

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 389, 778, 1223, 1945, 2446, 3890, 6115, 7391, 12230, 14782, 23237, 36955, 46474, 73910, 116185, 232370, 475747, 951494, 2378735, 4757470, 9039193, 18078386, 45195965, 90391930]

約数ペア:

[(1, 90391930), (2, 45195965), (5, 18078386), (10, 9039193), (19, 4757470), (38, 2378735), (95, 951494), (190, 475747), (389, 232370), (778, 116185), (1223, 73910), (1945, 46474), (2446, 36955), (3890, 23237), (6115, 14782), (7391, 12230)]