28183275

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{971}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 53032320

約数和(自身を除く): 24849045

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 129, 135, 215, 225, 387, 645, 675, 971, 1075, 1161, 1935, 2913, 3225, 4855, 5805, 8739, 9675, 14565, 24275, 26217, 29025, 41753, 43695, 72825, 125259, 131085, 208765, 218475, 375777, 626295, 655425, 1043825, 1127331, 1878885, 3131475, 5636655, 9394425, 28183275]

約数ペア:

[(1, 28183275), (3, 9394425), (5, 5636655), (9, 3131475), (15, 1878885), (25, 1127331), (27, 1043825), (43, 655425), (45, 626295), (75, 375777), (129, 218475), (135, 208765), (215, 131085), (225, 125259), (387, 72825), (645, 43695), (675, 41753), (971, 29025), (1075, 26217), (1161, 24275), (1935, 14565), (2913, 9675), (3225, 8739), (4855, 5805)]