90378045

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15569}}^1$

素因数の和:15626

約数の個数: 32

約数和(自身を含む): 164419200

約数和(自身を除く): 74041155

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 5805, 15569, 46707, 77845, 140121, 233535, 420363, 669467, 700605, 2008401, 2101815, 3347335, 6025203, 10042005, 18075609, 30126015, 90378045]

約数ペア:

[(1, 90378045), (3, 30126015), (5, 18075609), (9, 10042005), (15, 6025203), (27, 3347335), (43, 2101815), (45, 2008401), (129, 700605), (135, 669467), (215, 420363), (387, 233535), (645, 140121), (1161, 77845), (1935, 46707), (5805, 15569)]